एपीए उद्धरण

FAO. (1991). World soil resources reports N.71.1: Agro-ecological land resources assessment for agricultural development planning. Rome: FAO.

शिकागो स्टाइल उद्धरण

FAO. World Soil Resources Reports N.71.1: Agro-ecological Land Resources Assessment for Agricultural Development Planning. Rome: FAO, 1991.

एमएलए उद्धरण

FAO. World Soil Resources Reports N.71.1: Agro-ecological Land Resources Assessment for Agricultural Development Planning. Rome: FAO, 1991.