Cita APA (7a ed.)

Thiele, C. L. (1938). The contribution of generalization to the learning of the addition facts. Columbia University.

Cita Chicago Style (17a ed.)

Thiele, Carl Louis. The Contribution of Generalization to the Learning of the Addition Facts. New York: Columbia University, 1938.

Cita MLA (9a ed.)

Thiele, Carl Louis. The Contribution of Generalization to the Learning of the Addition Facts. Columbia University, 1938.