FAO. (1919). FAO conservation guide N.20: Arid zone forestry: a guide for field technicians. Rome: FAO.
Chicago Stili AlıntıFAO. FAO Conservation Guide N.20: Arid Zone Forestry: A Guide for Field Technicians. Rome: FAO, 1919.
MLA AlıntıFAO. FAO Conservation Guide N.20: Arid Zone Forestry: A Guide for Field Technicians. Rome: FAO, 1919.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..