APA

Leeper R., Madison P., . (1959). Toward understanding human personalities. New York: Appleton-Century-Crofts.

Chicago

Leeper Robert, Madison Peter, . 1959. Toward understanding human personalities. New York: Appleton-Century-Crofts.

Harvard

Leeper R., Madison P., . (1959). Toward understanding human personalities. New York: Appleton-Century-Crofts.

MLA

Leeper Robert, Madison Peter, . Toward understanding human personalities. New York: Appleton-Century-Crofts. 1959.