Leonardo, G. O. (1979). Investment requirements of Philippine agriculture: A linear programming analysis [microform]. Photoduplication Service, University of the Philippines Library.
Citazione stile Chigago Style (17a edizione)Leonardo, Garibaldi O. Investment Requirements of Philippine Agriculture: A Linear Programming Analysis [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1979.
Citatione MLA (9a ed.)Leonardo, Garibaldi O. Investment Requirements of Philippine Agriculture: A Linear Programming Analysis [microform]. Photoduplication Service, University of the Philippines Library, 1979.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.