APA引文

Levine, H. (1991). 22000 Vocabulary for TOELF: Test of English as a Foreign Language. London: Longman.

Trích dẫn kiểu Chicago

Levine, Harold. 22000 Vocabulary for TOELF: Test of English As a Foreign Language. London: Longman, 1991.

MLA引文

Levine, Harold. 22000 Vocabulary for TOELF: Test of English As a Foreign Language. London: Longman, 1991.

警告：這些引文格式不一定是100％准確.