APA (7th ed.) Citation

Thorndike, E. L. (1929). The psychology of arithmetic / by E.L. Thorndike. Macmillan.

Chicago Style (17th ed.) Citation

Thorndike, E. L. The Psychology of Arithmetic / by E.L. Thorndike. Macmillan, 1929.

MLA (9th ed.) Citation

Thorndike, E. L. The Psychology of Arithmetic / by E.L. Thorndike. Macmillan, 1929.

Warning: These citations may not always be 100% accurate.