Style de citation APA (7e éd.)

Nguyen Tri Khiem. (1977). An economic analysis of pasture improvement and grazing practices of beef cattle production in the Philippines [microform]. Photoduplication Service. University of the Philippines Library.

Style de citation Chicago (17e éd.)

Nguyen Tri Khiem. An Economic Analysis of Pasture Improvement and Grazing Practices of Beef Cattle Production in the Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

Style de citation MLA (9e éd.)

Nguyen Tri Khiem. An Economic Analysis of Pasture Improvement and Grazing Practices of Beef Cattle Production in the Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1977.