Cita APA (7th ed.)
Pietrofesa, J. J., & Hoffman, A. (1984). Counseling: An Introduction (2nd ed.). Houghton Mifflin.
Cita Chicago (17th ed.)
Pietrofesa, John J., i Allan Hoffman. Counseling: An Introduction. 2nd ed. Dallas: Houghton Mifflin, 1984.
Cita MLA (9th ed.)
Pietrofesa, John J., i Allan Hoffman. Counseling: An Introduction. 2nd ed. Houghton Mifflin, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.