Gaya APA

Cohen, W, A. (1990). The Entrepreneur and Small Business Problem Solver: An Encyclopedic Reference and Guide (2nd. Ed.). Singapore: John Wiley & Sons.

Gaya MLA

Cohen, William, A. "The Entrepreneur and Small Business Problem Solver: An Encyclopedic Reference and Guide". 2nd. Ed. Singapore: John Wiley & Sons, 1990. Text.