Author(s) Porte, Guy; Sohrab, K.R.; Sadri Voheidi, D.; Minaie, A.A.; Saghafi, F.G.; Faroukhy, D.; Ghassemi, A.M. Languages French Series Rapport de recherche de l'IIPE, 27 Year 1978 Pages 193 p., maps Country Iran Theme Planning, tools, and methods Online version French