Del Rosario, B. P. (1980). Soil factors limiting sugar cane production in the Don Pedro Mill District, Batangas [microform]. Photoduplication Service, University of the Philippines Library.
芝加哥风格引文Del Rosario, Beatriz P. Soil Factors Limiting Sugar Cane Production in the Don Pedro Mill District, Batangas [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1980.
MLA引文Del Rosario, Beatriz P. Soil Factors Limiting Sugar Cane Production in the Don Pedro Mill District, Batangas [microform]. Photoduplication Service, University of the Philippines Library, 1980.
警告：这些引文格式不一定是100％准确.