de Leon, S. Y. (1982). Preservation of Philippine foods: A manual of principles and procedures. Alemar-Phoenix.
Chicago Style (17th ed.) Citationde Leon, Sonia Y. Preservation of Philippine Foods: A Manual of Principles and Procedures. Quezon City: Alemar-Phoenix, 1982.
MLA (9th ed.) Citationde Leon, Sonia Y. Preservation of Philippine Foods: A Manual of Principles and Procedures. Alemar-Phoenix, 1982.
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