APA-referens (7:e uppl.)

Yang, C. (1977). Drought tolerance in rice and varietal screening [microform]. Photoduplication Service, University of the Philippines Library.

Chicago-referens (17:e uppl.)

Yang, Chien-Nan. Drought Tolerance in Rice and Varietal Screening [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1977.

MLA-referens (9:e uppl.)

Yang, Chien-Nan. Drought Tolerance in Rice and Varietal Screening [microform]. Photoduplication Service, University of the Philippines Library, 1977.