APA (7. basım) Alıntı

Leo, S. (2009). English for Academic Purpose: Essay Writting/ 2009. Yogyakarta: Andi.

Chicago Style (17. basım) Atıf

Leo, Sutanto. English for Academic Purpose: Essay Writting/ 2009. Yogyakarta: Andi, 2009.

MLA (8th ed.) Atıf

Leo, Sutanto. English for Academic Purpose: Essay Writting/ 2009. Yogyakarta: Andi, 2009.