International Federation of Organic Agriculture Movements (IFOAM). (1988). Official IFOAM membersship list: October 1988. Tholey-Tholey: IFOAM.
Chicago Style (17th ed.) CitationInternational Federation of Organic Agriculture Movements (IFOAM). Official IFOAM Membersship List: October 1988. Tholey-Tholey: IFOAM, 1988.
MLA引文International Federation of Organic Agriculture Movements (IFOAM). Official IFOAM Membersship List: October 1988. Tholey-Tholey: IFOAM, 1988.
警告:這些引文格式不一定是100%准確.