Cita APA (7th ed.)
Orgel, J. R. (1975). Enriching Your Vocabulary. Oxford Book Company.
Cita Chicago (17th ed.)
Orgel, Joseph R. Enriching Your Vocabulary. New York, NY: Oxford Book Company, 1975.
Cita MLA (9th ed.)
Orgel, Joseph R. Enriching Your Vocabulary. Oxford Book Company, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.