Dyfyniad APA

FAO. (1995). World soil resources reports N.74.1: Global and national soils and terrain digital databases ( soter ): Procedures manual. Rome: FAO.

Dyfyniad Arddull Chicago

FAO. World Soil Resources Reports N.74.1: Global and National Soils and Terrain Digital Databases ( Soter ): Procedures Manual. Rome: FAO, 1995.

Dyfyniad MLA

FAO. World Soil Resources Reports N.74.1: Global and National Soils and Terrain Digital Databases ( Soter ): Procedures Manual. Rome: FAO, 1995.

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