APA

Heyns R. W., . (1957). The psychology of personal adjustment. New York: Hotl, Rinehard and Winston.

Chicago

Heyns Roger William, . 1957. The psychology of personal adjustment. New York: Hotl, Rinehard and Winston.

Harvard

Heyns R. W., . (1957). The psychology of personal adjustment. New York: Hotl, Rinehard and Winston.

MLA

Heyns Roger William, . The psychology of personal adjustment. New York: Hotl, Rinehard and Winston. 1957.