Dyfyniad APA

FAO. (1993). World soil resources reports N.72: Computerized systems of land resources appraisal for agricultural development. Rome: FAO.

Dyfyniad Arddull Chicago

FAO. World Soil Resources Reports N.72: Computerized Systems of Land Resources Appraisal for Agricultural Development. Rome: FAO, 1993.

Dyfyniad MLA

FAO. World Soil Resources Reports N.72: Computerized Systems of Land Resources Appraisal for Agricultural Development. Rome: FAO, 1993.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.