Bartolini, P. U. (1980). The influence of seed quality on crop performance in soybean and sorghum [microform]. Photoduplication Service. University of the Philippines Library.
Dyfyniad Arddull ChicagoBartolini, Perfecto Urdaneta. The Influence of Seed Quality on Crop Performance in Soybean and Sorghum [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1980.
Dyfyniad MLABartolini, Perfecto Urdaneta. The Influence of Seed Quality on Crop Performance in Soybean and Sorghum [microform]. Photoduplication Service. University of the Philippines Library, 1980.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.