APA Edition Citation

Green Baum, R., & Tilker, H. A. (1972). Challange of psychology.

Chicago Edition Citation

Green Baum, Richard, and Harvey A. Tilker. Challange of Psychology. 1972.

MLA Edition Citation

Green Baum, Richard, and Harvey A. Tilker. Challange of Psychology. 1972.

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