Symposium on Changes of Climate with special reference to arid zones, Unesco, & World Meteorological Organization. (1963). Changes of climate: Proceedings of the Rome Symposium = Les changements de climat : actes du colloque de Rome. Unesco.

Symposium on Changes of Climate with special reference to arid zones, Unesco, and World Meteorological Organization. Changes of Climate: Proceedings of the Rome Symposium = Les Changements De Climat : Actes Du Colloque De Rome. Paris: Unesco, 1963.

Symposium on Changes of Climate with special reference to arid zones, et al. Changes of Climate: Proceedings of the Rome Symposium = Les Changements De Climat : Actes Du Colloque De Rome. Unesco, 1963.