Random sampling used in advertising sales testing.
Published: 1956
Language: eng
Number of pages: 78
Subjects: Advertising -- Research.
Other titles: Advertising sales testing.
Notes: Thesis - State University of Iowa, 1956.

Includes bibliographical references.

Microfilm (positive). Ann Arbor, Mich., University of  Microfilms 1956.

SHORT CIRCULATION RECORD.