(1988). Bibliography of agriculture. Vol.52, No.2. United States: ORYX Press.
Chicago Style aipamenaBibliography of Agriculture. Vol.52, No.2. United States: ORYX Press, 1988.
MLA aipamenaBibliography of Agriculture. Vol.52, No.2. United States: ORYX Press, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.