Cita APA (7a ed.)

Books24x7, Inc, & Yudkin, M. (2009). 6 steps to free publicity (3rd ed.). Career Press, Inc.

Cita Chicago Style (17a ed.)

Books24x7, Inc, y Marcia Yudkin. 6 Steps to Free Publicity. 3rd ed. Franklin Lakes, NJ: Career Press, Inc, 2009.

Cita MLA (9a ed.)

Books24x7, Inc, y Marcia Yudkin. 6 Steps to Free Publicity. 3rd ed. Career Press, Inc, 2009.