Sanchez, P. S. (1974). Some observations on the influence of four sulfa preparations in controlling roup and coccidiosis among chickens raised on built-up litter at the Cagayan Valley Institute of Technology [microform]. Photoduplication Service, University of the Philippines Library.
Cita Chicago (17th ed.)Sanchez, Pedro S. Some Observations on the Influence of Four Sulfa Preparations in Controlling Roup and Coccidiosis Among Chickens Raised on Built-up Litter at the Cagayan Valley Institute of Technology [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
Cita MLA (9th ed.)Sanchez, Pedro S. Some Observations on the Influence of Four Sulfa Preparations in Controlling Roup and Coccidiosis Among Chickens Raised on Built-up Litter at the Cagayan Valley Institute of Technology [microform]. Photoduplication Service, University of the Philippines Library, 1974.