Citazione Stile APA (7a Edizione)

Sperling. JoAnn. (1969). Job descriptions in marketing management. AMA, Inc.

Citazione stile Chigago Style (17a edizione)

Sperling. JoAnn. Job Descriptions in Marketing Management. New York: AMA, Inc, 1969.

Citatione MLA (9a ed.)

Sperling. JoAnn. Job Descriptions in Marketing Management. AMA, Inc, 1969.