APA-viite

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-tyylinen lähdeviittaus

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-viite

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

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