Psomopoulos, P. (1977). Desertification and human settlements: Imperative need for relevant connections. Athens: Athens Technological Organization : Athens Center of Ekistics.
Παραπομπή Chicago StylePsomopoulos, Panayis. Desertification and Human Settlements: Imperative Need for Relevant Connections. Athens: Athens Technological Organization : Athens Center of Ekistics, 1977.
Παραπομπή MLAPsomopoulos, Panayis. Desertification and Human Settlements: Imperative Need for Relevant Connections. Athens: Athens Technological Organization : Athens Center of Ekistics, 1977.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.