APA

Guthrie E. R., . (1950). The psychology of human conflict: the clash of motives within the individual. New York: Peter Smith.

Chicago

Guthrie Edwin Ray, . 1950. The psychology of human conflict: the clash of motives within the individual. New York: Peter Smith.

Harvard

Guthrie E. R., . (1950). The psychology of human conflict: the clash of motives within the individual. New York: Peter Smith.

MLA

Guthrie Edwin Ray, . The psychology of human conflict: the clash of motives within the individual. New York: Peter Smith. 1950.