Islam, K. A. (1977). Assessing fertility status of soils deposited by flood, using soybean, Glycine Max (L) Merrill, as test crop [microform]. Photoduplication Service, University of the Philippines Library.
Chicago (17e ed.) BronvermeldingIslam, Khwaja Akhtar-ul. Assessing Fertility Status of Soils Deposited by Flood, Using Soybean, Glycine Max (L) Merrill, as Test Crop [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
MLA (9e ed.) BronvermeldingIslam, Khwaja Akhtar-ul. Assessing Fertility Status of Soils Deposited by Flood, Using Soybean, Glycine Max (L) Merrill, as Test Crop [microform]. Photoduplication Service, University of the Philippines Library, 1977.
Let op: Deze citaties zijn niet altijd 100% accuraat.