Cita APA (7a ed.)

Walters, J. M. (1986). The origins of counting in children. University Microfilms International.

Cita Chicago Style (17a ed.)

Walters, Joseph M. The Origins of Counting in Children. Ann Arbor: University Microfilms International, 1986.

Cita MLA (9a ed.)

Walters, Joseph M. The Origins of Counting in Children. University Microfilms International, 1986.