APA (7th ed.) Citation

Swain, R. L. (1963). Understanding arithmetic. Haolt, Rinehart r Winston.

Chicago Style (17th ed.) Citation

Swain, Robert L. Understanding Arithmetic. Haolt, Rinehart r Winston, 1963.

MLA (8th ed.) Citation

Swain, Robert L. Understanding Arithmetic. Haolt, Rinehart r Winston, 1963.

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