Sinaghio, M. L. (1974). Ascorbic acid losses of cooked pechay (Brassica Chinensis) and kamote leaves (Ipomoea batatas) [microform]. Photoduplication Service. University of the Philippines Library.
Cita Chicago (17th ed.)Sinaghio, Moninia Lazaro. Ascorbic Acid Losses of Cooked Pechay (Brassica Chinensis) and Kamote Leaves (Ipomoea Batatas) [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1974.
Cita MLA (9th ed.)Sinaghio, Moninia Lazaro. Ascorbic Acid Losses of Cooked Pechay (Brassica Chinensis) and Kamote Leaves (Ipomoea Batatas) [microform]. Photoduplication Service. University of the Philippines Library, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.