APA (7th ed.) Citation

Valencia, E. M. Trade & Philippine history & other exercises.

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

Valencia, Ernesto M. Trade & Philippine History & Other Exercises.

Warning: These citations may not always be 100% accurate.