Cita APA (7th ed.)

Megino, R. P. (1977). An agricultural economic land classification of northwestern Laguna, 1962 [microform]. Photoduplication Service. University of the Philippines Library.

Cita Chicago (17th ed.)

Megino, Rogelio Penalosa. An Agricultural Economic Land Classification of Northwestern Laguna, 1962 [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.

Cita MLA (9th ed.)

Megino, Rogelio Penalosa. An Agricultural Economic Land Classification of Northwestern Laguna, 1962 [microform]. Photoduplication Service. University of the Philippines Library, 1977.