Cita APA (7th ed.)

Allen, H. B., & Campbell, R. N. (1972). Teaching English as a second language: A book of readings (2d ed.). McGraw-Hill.

Cita Chicago (17th ed.)

Allen, Harold Byron, i Russell N. Campbell. Teaching English as a Second Language: A Book of Readings. 2d ed. New York: McGraw-Hill, 1972.

Cita MLA (9th ed.)

Allen, Harold Byron, i Russell N. Campbell. Teaching English as a Second Language: A Book of Readings. 2d ed. McGraw-Hill, 1972.