Cita APA (7th ed.)
Richards, L. O. (1987). The Teacher's commentary. Victor Books.
Cita Chicago (17th ed.)
Richards, Lawrence O. The Teacher's Commentary. USA: Victor Books, 1987.
Cita MLA (9th ed.)
Richards, Lawrence O. The Teacher's Commentary. Victor Books, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.