APA引文

Không rõ. (2003). Test preparation kit workbook TOEFL: Test of English as a foreign language 2002-2003. TR.

Trích dẫn kiểu Chicago

Không rõ. Test Preparation Kit Workbook TOEFL: Test of English As a Foreign Language 2002-2003. TR, 2003.

MLA引文

Không rõ. Test Preparation Kit Workbook TOEFL: Test of English As a Foreign Language 2002-2003. TR, 2003.

警告：这些引文格式不一定是100％准确.