De Guzman, C. C. (1996). The essential oils research and development program (EORDP): Linking its endeavors to essential oils production in the Philippines. Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist).
Citazione stile Chigago Style (17a edizione)De Guzman, Constancio C. "The Essential Oils Research and Development Program (EORDP): Linking Its Endeavors to Essential Oils Production in the Philippines." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist) 1996.
Citatione MLA (9a ed.)De Guzman, Constancio C. "The Essential Oils Research and Development Program (EORDP): Linking Its Endeavors to Essential Oils Production in the Philippines." Philippine Agricultural Scientist, The (Formerly the Philippine Agriculturist), 1996.