International Potash Intitute. (1982). Optimizing yields the role of fertilizers (Primera edición.). International Potash Intitute.
Chicago Style (17th ed.) CitationInternational Potash Intitute. Optimizing Yields the Role of Fertilizers. Primera edición. Bern: International Potash Intitute, 1982.
MLA引文International Potash Intitute. Optimizing Yields the Role of Fertilizers. Primera edición. International Potash Intitute, 1982.
警告:這些引文格式不一定是100%准確.