APA引文

Marks, J. (2009). IELTS resource pack: Games, activities and practice tests for IELTS preparation classes. Viva.

Chicago Edition Citation

Marks, Jon. IELTS Resource Pack: Games, Activities and Practice Tests for IELTS Preparation Classes. New Delhi: Viva, 2009.

MLA引文

Marks, Jon. IELTS Resource Pack: Games, Activities and Practice Tests for IELTS Preparation Classes. Viva, 2009.

警告：這些引文格式不一定是100％准確.