Cita APA (7th ed.)

Brown, J. I. (1980). Programmed vocabulary: The CPD approach (3rd ed.). Prentice Hall.

Cita Chicago (17th ed.)

Brown, James Isaac. Programmed Vocabulary: The CPD Approach. 3rd ed. Englewood Cliffs, NJ: Prentice Hall, 1980.

Cita MLA (9th ed.)

Brown, James Isaac. Programmed Vocabulary: The CPD Approach. 3rd ed. Prentice Hall, 1980.