APA (7. basım) Alıntı

Writing Improvement Project. (1977). Building English skills. McDougal, Littell & Company.

Chicago Style (17. basım) Atıf

Writing Improvement Project. Building English Skills. Evanston, Illinois: McDougal, Littell & Company, 1977.

MLA (9th ed.) Atıf

Writing Improvement Project. Building English Skills. McDougal, Littell & Company, 1977.