APA引文

SWAIN, R. L. Umderstanding arithmetic#Robert L. Swain. Holt, Rinehart & Winsta.

Chicago Style (17th ed.) Citation

SWAIN, Robert L. Umderstanding Arithmetic#Robert L. Swain. Holt, Rinehart & Winsta.

MLA引文

SWAIN, Robert L. Umderstanding Arithmetic#Robert L. Swain. Holt, Rinehart & Winsta.

警告：这些引文格式不一定是100％准确.