Cita APA (7a ed.)

Fried-Booth, D. L. (1996). PET practice tests: Five tests for the Cambridge Preliminary English Test (1ª ed.).

Cita Chicago Style (17a ed.)

Fried-Booth, Diana L. PET Practice Tests: Five Tests for the Cambridge Preliminary English Test. 1ª ed. New York, 1996.

Cita MLA (9a ed.)

Fried-Booth, Diana L. PET Practice Tests: Five Tests for the Cambridge Preliminary English Test. 1ª ed. 1996.