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