APA (7th ed.) Citation

Swain, L. R. (1963). Understanding arithmetic. Holt Rinehart and Winston Inc.

Chicago Style (17th ed.) Citation

Swain, L. Robert. Understanding Arithmetic. Holt Rinehart and Winston Inc, 1963.

MLA (8th ed.) Citation

Swain, L. Robert. Understanding Arithmetic. Holt Rinehart and Winston Inc, 1963.

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