Cita APA

Tibble, J., & Tibble, A. (1962). Helen keller.

Citación estilo Chicago

Tibble, Jwand, and Anne Tibble. Helen Keller. 1962.

Cita MLA

Tibble, Jwand, and Anne Tibble. Helen Keller. 1962.

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