Gaya APA

Nunan, D, J. (1971). Composition: models and exercises (2nd, ed). New York: Harcourt Brace Jovanovich, Inc.

Gaya MLA

Nunan, Desmond, J.. "Composition: models and exercises". 2nd, ed New York: Harcourt Brace Jovanovich, Inc, 1971. Text.