APA aipamena

Pratuang, K. (1977). Effect of PH on the growth of rhizobia and nitrogen fixation in some rhizobium-legume associations [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style aipamena

Pratuang, Krootha. Effect of PH on the Growth of Rhizobia and Nitrogen Fixation in Some Rhizobium-legume Associations [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

MLA aipamena

Pratuang, Krootha. Effect of PH on the Growth of Rhizobia and Nitrogen Fixation in Some Rhizobium-legume Associations [microform]. Photoduplication Service. University of the Philippines Library, 1977.