APA

Guilford J. P., . (1959). Personality. New York: McGraw-Hill.

Chicago

Guilford J P, . 1959. Personality. New York: McGraw-Hill.

Harvard

Guilford J. P., . (1959). Personality. New York: McGraw-Hill.

MLA

Guilford J P, . Personality. New York: McGraw-Hill. 1959.