APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (9. p.)

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