Cita APA (7th ed.)

Rummler, G. A. (2007). Serious performance consulting. According to Rummler. Pfeiffer.

Cita Chicago (17th ed.)

Rummler, Geary A. Serious Performance Consulting. According to Rummler. San Francisco: Pfeiffer, 2007.

Cita MLA (9th ed.)

Rummler, Geary A. Serious Performance Consulting. According to Rummler. Pfeiffer, 2007.