De Leon, Sonia Y. Preservation of Philippine foods : a manual of principles and procedures / Sonia Y. De Leon and Matilde P. Guzman. - Quezon City: Phoenix Pub., c1996. - viii, 206 p. : ill. ; 22 cm. Includes bibliography ISBN: 978-971-060-583-5 (pbk.) Subjects--Topical Terms: Food --Preservation