Gaya APA

Ellis, D, J., Jr, P, P, P. (1980). PLANNING for NONPLANNERS Planning Basics for Managers . United States of America: amacom.

Gaya MLA

Ellis, Darryl, J.., Jr, Peter, P., Pekar,. "PLANNING for NONPLANNERS Planning Basics for Managers". United States of America: amacom, 1980. Text.