Cita APA (7th ed.)

Swift , P. W. (1969). General Psychology (ed.). McGraw- Hill Book Co..

Cita Chicago (17th ed.)

Swift , Porter W. General Psychology. ed. New York: McGraw- Hill Book Co., 1969.

Cita MLA (9th ed.)

Swift , Porter W. General Psychology. ed. McGraw- Hill Book Co., 1969.