APA aipamena

FAO. Human and draught animal power in crop production: Proceedings of the harare workshop, Zimbabwe 18-22 Januari 1993. Rome.

Chicago Style aipamena

FAO. Human and Draught Animal Power in Crop Production: Proceedings of the Harare Workshop, Zimbabwe 18-22 Januari 1993. Rome.

MLA aipamena

FAO. Human and Draught Animal Power in Crop Production: Proceedings of the Harare Workshop, Zimbabwe 18-22 Januari 1993. Rome.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.