Palis, R. G. (1980). Soil erosion under different cover crops [microform]. Photoduplication Service. University of the Philippines Library.
Citação norma ChicagoPalis, Reynaldo Gibas. Soil Erosion Under Different Cover Crops [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1980.
Citação norma MLAPalis, Reynaldo Gibas. Soil Erosion Under Different Cover Crops [microform]. Photoduplication Service. University of the Philippines Library, 1980.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.