Cheong, J. W. (1977). The university extension programs and their impact: The case of University of the Philippines, College of Agriculture [microform]. Photoduplication Service. University of the Philippines Library.
Cita Chicago (17th ed.)Cheong, Ji Woong. The University Extension Programs and Their Impact: The Case of University of the Philippines, College of Agriculture [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Cita MLA (9th ed.)Cheong, Ji Woong. The University Extension Programs and Their Impact: The Case of University of the Philippines, College of Agriculture [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.