Dyfyniad APA

Allen, H. B., & Campbell, R. N. (1977). Teaching english as a second language: A book of readings (Ed.2.).

Dyfyniad Arddull Chicago

Allen, Harold B., and Russell N. Campbell. Teaching English as a Second Language: A Book of Readings. Ed.2. New Delhi, Tata Mc Graw Hill Publishing Company, 1977.

Dyfyniad MLA

Allen, Harold B., and Russell N. Campbell. Teaching English as a Second Language: A Book of Readings. Ed.2. 1977.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.