Krutkun, T. (1977). Influence of internal drainage on the chemical and electrochemical changes of four flooded soils and on the growth of rice [microform]. Photoduplication Service, University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Krutkun, Tawin. Influence of Internal Drainage on the Chemical and Electrochemical Changes of Four Flooded Soils and on the Growth of Rice [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.
Citatione MLA (9a ed.)Krutkun, Tawin. Influence of Internal Drainage on the Chemical and Electrochemical Changes of Four Flooded Soils and on the Growth of Rice [microform]. Photoduplication Service, University of the Philippines Library, 1977.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.