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.
Παραπομπή σε μορφή Chicago (17η εκδ.)Islam, 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.
Παραπομπή σε μορφή MLA (9th εκδ.)Islam, 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.
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