एपीए उद्धरण

FAO. (1919). FAO conservation guide N.20: Arid zone forestry: a guide for field technicians. Rome: FAO.

शिकागो स्टाइल उद्धरण

FAO. FAO Conservation Guide N.20: Arid Zone Forestry: A Guide for Field Technicians. Rome: FAO, 1919.

एमएलए उद्धरण

FAO. FAO Conservation Guide N.20: Arid Zone Forestry: A Guide for Field Technicians. Rome: FAO, 1919.