APA (7. basım) Alıntı

Valencia, E. M. (2002). Trade & Philippine history & other exercises. Giraffe Book.

Chicago Style (17. basım) Atıf

Valencia, Ernesto M. Trade & Philippine History & Other Exercises. Quezon City: Giraffe Book, 2002.

MLA (9th ed.) Atıf

Valencia, Ernesto M. Trade & Philippine History & Other Exercises. Giraffe Book, 2002.