APA
De Leon S. Y., . (1982). Preservation of Philippine foods. [Place of publication not identified]: Phoenix Publishing House.
Chicago
De Leon Sonia Y, . 1982. Preservation of Philippine foods. [Place of publication not identified]: Phoenix Publishing House.
Harvard
De Leon S. Y., . (1982). Preservation of Philippine foods. [Place of publication not identified]: Phoenix Publishing House.
MLA
De Leon Sonia Y, . Preservation of Philippine foods. [Place of publication not identified]: Phoenix Publishing House. 1982.