APA引文

Harrity, R. A., & Martin , R. G. (1962). Three lives Helen Keller.

Chicago Edition Citation

Harrity, Richard And, and Ralph G. Martin. Three Lives Helen Keller. 1962.

MLA引文

Harrity, Richard And, and Ralph G. Martin. Three Lives Helen Keller. 1962.

警告：这些引文格式不一定是100％准确.