FAO. (2001). Guidelines on organization and operation of training schemes and certification procedures for operators of pesticide application equipment: FAO. Rome, Italy: FAO.
Chicago-tyylinen lähdeviittausFAO. Guidelines On Organization and Operation of Training Schemes and Certification Procedures for Operators of Pesticide Application Equipment: FAO. Rome, Italy: FAO, 2001.
MLA-viiteFAO. Guidelines On Organization and Operation of Training Schemes and Certification Procedures for Operators of Pesticide Application Equipment: FAO. Rome, Italy: FAO, 2001.
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