APA aipamena

International Federation of Organic Agriculture Movements (IFOAM). (1988). Official IFOAM membersship list: October 1988. Tholey-Tholey: IFOAM.

Chicago Style aipamena

International Federation of Organic Agriculture Movements (IFOAM). Official IFOAM Membersship List: October 1988. Tholey-Tholey: IFOAM, 1988.

MLA aipamena

International Federation of Organic Agriculture Movements (IFOAM). Official IFOAM Membersship List: October 1988. Tholey-Tholey: IFOAM, 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.