MLA

Schimek, Rosemary, et al. Updates for Marketers Going Direct. USA, 2011.

APA

Schimek, R., Pence, J., Ganos, A., Bergeson, J., Bitter, G., & Vaughan, A. (2011). Updates for marketers going direct. USA.

Chicago

Schimek, Rosemary, Jeff Pence, Alexa Ganos, Jim Bergeson, Gay Bitter, and Allen Vaughan. Updates for Marketers Going Direct. USA, 2011.