Vo Ai Quac. (1977). The calcium and phosphorus requirements of swine: Weanling pigs from 10 to 20 kilogram liveweight [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-viite (17. p.)Vo Ai Quac. The Calcium and Phosphorus Requirements of Swine: Weanling Pigs from 10 to 20 Kilogram Liveweight [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
MLA-viite (9. p.)Vo Ai Quac. The Calcium and Phosphorus Requirements of Swine: Weanling Pigs from 10 to 20 Kilogram Liveweight [microform]. Photoduplication Service, University of the Philippines Library, 1977.
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