Cita APA

Thorpe,Edgar, & Thorpe,Showick. (2003). Objective english. Pearson Education.

Chicago Edition Citation

Thorpe,Edgar, i Thorpe,Showick. Objective English. New Delhi: Pearson Education, 2003.

Cita MLA

Thorpe,Edgar, i Thorpe,Showick. Objective English. Pearson Education, 2003.