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1وثيقة رسمية دورية
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2وثيقة رسمية كتاببواسطة Bagley, Marilyn D."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1973
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3كتاببواسطة Jeffries, H. E."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1975
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4وثيقة رسمية كتابمنشور في 1992"…United States. Environmental Protection Agency. Office of Research and Development…"
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5كتاببواسطة Roth, Charles B."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1974
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6كتابمنشور في 1974"…United States. Environmental Protection Agency. Office of Research and Development…"
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7كتابمنشور في 1979"…United States. Environmental Protection Agency. Office of Research and Development…"
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8وثيقة رسمية دورية
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9وثيقة رسمية دورية
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10كتاببواسطة Snyder, Alvin J."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1974
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11كتابمنشور في 1979"…United States. Environmental Protection Agency. Office of Research and Development…"
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12كتاببواسطة Venosa, Albert D."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1979
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13كتابمنشور في 1980"…United States. Environmental Protection Agency. Office of Research and Development…"
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14كتاببواسطة Kirmeyer, Gregory J."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1979
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15كتاببواسطة Davis, Ernst M."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1979
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16كتابمنشور في 1979"…United States. Environmental Protection Agency. Office of Research and Development…"
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17كتاببواسطة Medina, Miguel A."…United States. Environmental Protection Agency. Office of Research and Development…"
منشور في 1979
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18كتابمنشور في 1979"…United States. Environmental Protection Agency. Office of Research and Development…"
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19وثيقة رسمية كتابمنشور في 1991"…United States. Environmental Protection Agency. Office of Research and Development…"
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20كتابمنشور في 1979"…United States. Environmental Protection Agency. Office of Research and Development…"