Cita APA (7a ed.)

Hopkinson, D., & Harrison, N. (2005). Who was Charles Darwin? Grosset & Dunlap.

Cita Chicago Style (17a ed.)

Hopkinson, Deborah, y Nancy Harrison. Who Was Charles Darwin? New York: Grosset & Dunlap, 2005.

Cita MLA (8a ed.)

Hopkinson, Deborah, y Nancy Harrison. Who Was Charles Darwin? Grosset & Dunlap, 2005.

Precaución: Estas citas no son 100% exactas.