Fernando, G. C., & Aragon, G. (1998). Mr. Ulcer. GCF Books.
Chicago Style aipamenaFernando, Gilda Cordero, and Girlie Aragon. Mr. Ulcer. Quezon City: GCF Books, 1998.
MLA aipamenaFernando, Gilda Cordero, and Girlie Aragon. Mr. Ulcer. GCF Books, 1998.
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