Cita APA (7a ed.)

Jurek, D., & MacDonald, S. (1989). Discovering the world: Biological science. DLM.

Cita Chicago Style (17a ed.)

Jurek, Dianne, y Sharon MacDonald. Discovering the World: Biological Science. Texas: DLM, 1989.

Cita MLA (9a ed.)

Jurek, Dianne, y Sharon MacDonald. Discovering the World: Biological Science. DLM, 1989.