Laing Communications Inc. Laing Research Services. (1991). Correlating museum and exhibition attendance with book and catalog sales. Laing Research Services.
Citace podle Chicago (17th ed.)Laing Communications Inc. Laing Research Services. Correlating Museum and Exhibition Attendance with Book and Catalog Sales. Bellevue, WA: Laing Research Services, 1991.
Citace podle MLA (8th ed.)Laing Communications Inc. Laing Research Services. Correlating Museum and Exhibition Attendance with Book and Catalog Sales. Laing Research Services, 1991.
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