APA (7th ed.) Citation

Riyanto. (1980). Interaction of rate and time of nitrogen application and weed control methods in upland rice [microform]. Photoduplication Service. University of the Philippines Library.

Chicago Style (17th ed.) Citation

Riyanto. Interaction of Rate and Time of Nitrogen Application and Weed Control Methods in Upland Rice [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1980.

MLA (9th ed.) Citation

Riyanto. Interaction of Rate and Time of Nitrogen Application and Weed Control Methods in Upland Rice [microform]. Photoduplication Service. University of the Philippines Library, 1980.