Cita APA (7th ed.)

Nowicki, S. (2004). Biology: The science of Life/Part 4. The Teaching Company.

Cita Chicago (17th ed.)

Nowicki, Stephen. Biology: The Science of Life/Part 4. Chantilly: The Teaching Company, 2004.

Cita MLA (9th ed.)

Nowicki, Stephen. Biology: The Science of Life/Part 4. The Teaching Company, 2004.