APA (7th ed.) Citation

Aragon, M. L. (1980). Nitrogen-potassium ratios in relation to nutrient content and yield of cotton [microform]. Photoduplication Service, University of the Philippines Library.

Chicago Style (17th ed.) Citation

Aragon, Miguel L. Nitrogen-potassium Ratios in Relation to Nutrient Content and Yield of Cotton [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1980.

MLA (9th ed.) Citation

Aragon, Miguel L. Nitrogen-potassium Ratios in Relation to Nutrient Content and Yield of Cotton [microform]. Photoduplication Service, University of the Philippines Library, 1980.