APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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