APA Citation

Callahan, P. S. 1. -., & Callahan, P. S. 1. -. (1972). The Evolution of insects. Nueva York: Holiday House.

Chicago Style Citation

Callahan, Philip S. 1923 -, and Philip S. 1923 - Callahan. The Evolution of Insects. Nueva York: Holiday House, 1972.

MLA Citation

Callahan, Philip S. 1923 -, and Philip S. 1923 - Callahan. The Evolution of Insects. Nueva York: Holiday House, 1972.

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