APA Citation

(2001). Delta's key to the TOEFL @ test. Delta Publishing Company.

Trích dẫn kiểu Chicago

Delta's Key to the TOEFL @ Test. Delta Publishing Company, 2001.

MLA Citation

Delta's Key to the TOEFL @ Test. Delta Publishing Company, 2001.

Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.