Carangdang, D. A. (1977). The effects of sources, placements, timing of nitrogen application and placements of phosphorus fertilizer on the nitrogen uptake, growth and yield of rice variety BPI 76 and on levels of mineral nitrogen on Maahas clay [microform]. Photoduplication Service. University of the Philippines Library.
Cita Chicago Style (17a ed.)Carangdang, Diosdado A. The Effects of Sources, Placements, Timing of Nitrogen Application and Placements of Phosphorus Fertilizer on the Nitrogen Uptake, Growth and Yield of Rice Variety BPI 76 and on Levels of Mineral Nitrogen on Maahas Clay [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Cita MLA (9a ed.)Carangdang, Diosdado A. The Effects of Sources, Placements, Timing of Nitrogen Application and Placements of Phosphorus Fertilizer on the Nitrogen Uptake, Growth and Yield of Rice Variety BPI 76 and on Levels of Mineral Nitrogen on Maahas Clay [microform]. Photoduplication Service. University of the Philippines Library, 1977.