APA-Zitierstil (7. Ausg.)

Gethin, A. (1982). Advanced English comprehension: With answer key (1. print. in this ed.). Nelson.

Chicago-Zitierstil (17. Ausg.)

Gethin, Amorey. Advanced English Comprehension: With Answer Key. 1. print. in this ed. Walton-on-Thames: Nelson, 1982.

MLA-Zitierstil (9. Ausg.)

Gethin, Amorey. Advanced English Comprehension: With Answer Key. 1. print. in this ed. Nelson, 1982.