Mangahas, M. K. (1969). A cross-sectional study of the diffusion of new rice varieties in Central Luzon. Institute of Economic Development and Research, School of Economics, University of the Philippines.
Chicago-referens (17:e uppl.)Mangahas, Mahar Kelly. A Cross-sectional Study of the Diffusion of New Rice Varieties in Central Luzon. [Quezon City]: Institute of Economic Development and Research, School of Economics, University of the Philippines, 1969.
MLA-referens (9:e uppl.)Mangahas, Mahar Kelly. A Cross-sectional Study of the Diffusion of New Rice Varieties in Central Luzon. Institute of Economic Development and Research, School of Economics, University of the Philippines, 1969.
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