APA (7th ed.) Citation

Boysen, S. T., & Capaldi, E. J. (1993). The development of numerical competence: Animal and human models. L. Erlbaum Associates.

Chicago Style (17th ed.) Citation

Boysen, Sarah Till, and E. John Capaldi. The Development of Numerical Competence: Animal and Human Models. Hillsdale, N.J.: L. Erlbaum Associates, 1993.

MLA (9th ed.) Citation

Boysen, Sarah Till, and E. John Capaldi. The Development of Numerical Competence: Animal and Human Models. L. Erlbaum Associates, 1993.