APA (7th ed.) Citation

Fernando, G. C., & Aragon, G. (1998). Mr. Ulcer. GCF Books.

Chicago Style (17th ed.) Citation

Fernando, Gilda Cordero, and Girlie Aragon. Mr. Ulcer. Quezon City: GCF Books, 1998.

MLA (9th ed.) Citation

Fernando, Gilda Cordero, and Girlie Aragon. Mr. Ulcer. GCF Books, 1998.

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