A. S. P. readership study.
MLA
Advertising & Sales Promotion Company (Bombay). A. S. P. readership study. Bombay : Advertising & Sales Promotion Co., Research Division, [1964]
APA
Advertising & Sales Promotion Company (Bombay). (1964). A. S. P. readership study. Bombay : Advertising & Sales Promotion Co., Research Division.
Chicago
Advertising & Sales Promotion Company (Bombay). A. S. P. readership study. Bombay : Advertising & Sales Promotion Co., Research Division, [1964]