Cita APA (7th ed.)

Nartea, R. N. (1977). Potassium supplying capacity of some coconut soils in the Philippines [microform]. Photoduplication Service. University of the Philippines Library.

Cita Chicago (17th ed.)

Nartea, Roberto Negranza. Potassium Supplying Capacity of Some Coconut Soils in the Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

Cita MLA (9th ed.)

Nartea, Roberto Negranza. Potassium Supplying Capacity of Some Coconut Soils in the Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1977.