Carcallas, C. D. (1977). Effects of different light intensities, nitrogen levels and population densities on grain sorghum [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Carcallas, Casimiro Decenilla. Effects of Different Light Intensities, Nitrogen Levels and Population Densities on Grain Sorghum [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citace podle MLA (9th ed.)Carcallas, Casimiro Decenilla. Effects of Different Light Intensities, Nitrogen Levels and Population Densities on Grain Sorghum [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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