Cita APA (7a ed.)

Hrdy, S. B. (2000). Mother nature: Maternal instincts and how they shape the human species (1st Ballantine Books ed.). Ballantine Books.

Cita Chicago Style (17a ed.)

Hrdy, Sarah Blaffer. Mother Nature: Maternal Instincts and How They Shape the Human Species. 1st Ballantine Books ed. New York: Ballantine Books, 2000.

Cita MLA (9a ed.)

Hrdy, Sarah Blaffer. Mother Nature: Maternal Instincts and How They Shape the Human Species. 1st Ballantine Books ed. Ballantine Books, 2000.