Lawas, N. R. (1979). Supplying zinc requirements of sugarcane: Studies on phophorus-zinc interactions and method of zinc fertilizer applications [microform]. Photoduplication Service, University of the Philippines Library.
Chicago Style (17th ed.) CitationLawas, Nestor R. Supplying Zinc Requirements of Sugarcane: Studies on Phophorus-zinc Interactions and Method of Zinc Fertilizer Applications [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1979.
MLA (9th ed.) CitationLawas, Nestor R. Supplying Zinc Requirements of Sugarcane: Studies on Phophorus-zinc Interactions and Method of Zinc Fertilizer Applications [microform]. Photoduplication Service, University of the Philippines Library, 1979.
Warning: These citations may not always be 100% accurate.