(1979). World agriculture: Towards 2000: an FAO study. London: Belhaven press.
Chicago Style aipamenaWorld Agriculture: Towards 2000: An FAO Study. London: Belhaven press, 1979.
MLA aipamenaWorld Agriculture: Towards 2000: An FAO Study. London: Belhaven press, 1979.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.