APA

Stanley N., .The best toefl test book. New York: Addision - Wesley Publishing Copmany.

Chicago

Stanley Nancy, .The best toefl test book. New York: Addision - Wesley Publishing Copmany.

Harvard

Stanley N., .The best toefl test book. New York: Addision - Wesley Publishing Copmany.

MLA

Stanley Nancy, .New York: Addision - Wesley Publishing Copmany. .