Cita APA (7a ed.)

Simmons, G. S. (2007). Billions of missing links. Harvest House.

Cita Chicago Style (17a ed.)

Simmons, Geoffrey S. Billions of Missing Links. Eugene (Oregon): Harvest House, 2007.

Cita MLA (9a ed.)

Simmons, Geoffrey S. Billions of Missing Links. Harvest House, 2007.