APA aipamena

R J Godwin. (1990). FAO agricultural servicies bulletin; N83: Agricultural engineering in development: Tillage for crop production in areas of low rainfall. Rome: FAO.

Chicago Style aipamena

R J Godwin. FAO Agricultural Servicies Bulletin; N83: Agricultural Engineering in Development: Tillage for Crop Production in Areas of Low Rainfall. Rome: FAO, 1990.

MLA aipamena

R J Godwin. FAO Agricultural Servicies Bulletin; N83: Agricultural Engineering in Development: Tillage for Crop Production in Areas of Low Rainfall. Rome: FAO, 1990.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.