Philippine Council For Agriculture, Forestry and Natural Resources Research And Development, & National Science and Technology Authority. (1986). State of the art non-metallic minerals: Fertilizer research. Philippine Council for Agriculture and Resources Research and Development.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPhilippine Council For Agriculture, Forestry and Natural Resources Research And Development, और National Science and Technology Authority. State of the Art Non-metallic Minerals: Fertilizer Research. Los Banos, Laguna: Philippine Council for Agriculture and Resources Research and Development, 1986.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPhilippine Council For Agriculture, Forestry and Natural Resources Research And Development, और National Science and Technology Authority. State of the Art Non-metallic Minerals: Fertilizer Research. Philippine Council for Agriculture and Resources Research and Development, 1986.