APA-referens (7:e uppl.)

Van Tassel, C. E. (1966). Analysis of factors influencing retail sales. Michigan State University.

Chicago-referens (17:e uppl.)

Van Tassel, Charles E. Analysis of Factors Influencing Retail Sales. East Lansing, Bureau of Business and Economic Research, Division of Research, Graduate School of Bus. Administration: Michigan State University, 1966.

MLA-referens (9:e uppl.)

Van Tassel, Charles E. Analysis of Factors Influencing Retail Sales. Michigan State University, 1966.