Brown, J. I. (1964). Programmed vocabulary. Appleton-Century-Crofts.
Cita Chicago (17th ed.)Brown, James Isaac. Programmed Vocabulary. New York: Appleton-Century-Crofts, 1964.
Cita MLA (9th ed.)Brown, James Isaac. Programmed Vocabulary. Appleton-Century-Crofts, 1964.
Atenció: Aquestes cites poden no estar 100% correctes.