Gaya APA

Stafford-Yilmaz, L., Zwier, L, J. (2005). 400 must-have words for the TOEFL . New York: McGraw-Hill.

Gaya MLA

Stafford-Yilmaz, Lynn., Zwier, Lawrence, J.. "400 must-have words for the TOEFL". New York: McGraw-Hill, 2005. Text.