FAO. (1995). World soil resources reports N.74.1: Global and national soils and terrain digital databases ( soter ): Procedures manual. Rome: FAO.
Chicago Stili AlıntıFAO. World Soil Resources Reports N.74.1: Global and National Soils and Terrain Digital Databases ( Soter ): Procedures Manual. Rome: FAO, 1995.
MLA AlıntıFAO. World Soil Resources Reports N.74.1: Global and National Soils and Terrain Digital Databases ( Soter ): Procedures Manual. Rome: FAO, 1995.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..