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