Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

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