APA-viite (7. p.)
Gerson, R. F. (1991). Writing and implementing a marketing plan: A guide for small business owners. Crisp.
Chicago-viite (17. p.)
Gerson, Richard F. Writing and Implementing a Marketing Plan: A Guide for Small Business Owners. Los Altos, Calif.: Crisp, 1991.
MLA-viite (9. p.)
Gerson, Richard F. Writing and Implementing a Marketing Plan: A Guide for Small Business Owners. Crisp, 1991.
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