Gaya APA
Cohen, W, A., Reddick, M, E. (1981).
Successful Marketing For Small Business (1 (pertama)).
New York:
Amacom.
Gaya MLA
Cohen, William, A.., Reddick, Marshall, E..
"Successful Marketing For Small Business".
1 (pertama)
New York:
Amacom,
1981.
Textbook.