Gaya APA
Kerin, R., B., Michaels, E., S. (1989).
Study Guide to Accompany Marketing (Second Edition).
United States of America:
Irwin.
Gaya MLA
Kerin, R., B., Michaels, E., S..
Study Guide to Accompany Marketing.
Second Edition
United States of America:
Irwin,
1989.
Text.