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.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPhilippine Council For Agriculture, Forestry and Natural Resources Research And Development, এবং 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.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPhilippine Council For Agriculture, Forestry and Natural Resources Research And Development, এবং National Science and Technology Authority. State of the Art Non-metallic Minerals: Fertilizer Research. Philippine Council for Agriculture and Resources Research and Development, 1986.