Dyfyniad APA

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.

Dyfyniad Arddull Chicago

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.

Dyfyniad MLA

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.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.