Παραπομπή σε μορφή APA (7η εκδ.)

Parker, S. T., & McKinney, M. L. (1999). Origins of intelligence: The evolution of cognitive development in monkeys, apes, and humans. Johns Hopkins University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Parker, Sue Taylor, και Michael L. McKinney. Origins of Intelligence: The Evolution of Cognitive Development in Monkeys, Apes, and Humans. Baltimore, Md.: Johns Hopkins University Press, 1999.

Παραπομπή σε μορφή MLA (9th εκδ.)

Parker, Sue Taylor, και Michael L. McKinney. Origins of Intelligence: The Evolution of Cognitive Development in Monkeys, Apes, and Humans. Johns Hopkins University Press, 1999.