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1Журнал
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2Государственный документ СерияОпубликовано 1985“...United States. Dept. of Agriculture. Economic Research Service...”
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3Государственный документ СерияОпубликовано 1985“...United States. Dept. of Agriculture. Economic Research Service...”
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4Государственный документ Журнал
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5Государственный документ по Bills, Nelson L.“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1984
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6по Hady, Thomas F. (Thomas Frank), 1933-“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1967
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7Государственный документ по Miller, James J.“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1984
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8Государственный документ The Africanized honey bee in the United States : what will happen to the U.S. beekeeping industry? /по McDowell, Robert“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1984
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9Государственный документ Опубликовано 1974“...United States. Dept. of Agriculture. Economic Research Service...”
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10Государственный документ по Van Arsdall, Roy Neuman, 1924-“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1984
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11Опубликовано 1984“...United States. Dept. of Agriculture. Economic Research Service...”
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12Опубликовано 1974“...United States. Dept. of Agriculture. Economic Research Service...”
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13по Banks, Vera J.“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1972
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14Журнал
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15по Frey, H. Thomas (Henry Thomas), 1927-“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1982
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16Опубликовано 1973“...United States. Dept. of Agriculture. Economic Research Service...”
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17Опубликовано 1973“...United States. Dept. of Agriculture. Economic Research Service...”
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18по Pollack, Susan L.“...United States. Dept. of Agriculture. Economic Research Service...”
Опубликовано 1981
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19ЖурналОпубликовано 1995“...United States. Dept. of Agriculture. Economic Research Service...”
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20ЖурналОпубликовано 1991“...United States. Dept. of Agriculture. Economic Research Service...”