Gaya APA

inc., G, I., Bennie, M. (2003). Grolier business library Mastering business english. How to improve your business communication skills . : grolier int'l.

Gaya MLA

inc., Grolier, International., Bennie, Michael. "Grolier business library Mastering business english. How to improve your business communication skills". : grolier int'l, 2003. Text.