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Partager : le programme israelien de cooperation avec d'autres pays en developpement
(1962)
Mines branch contributions to the United Nations Conference on the Application of Science and Technology for the Benefit of the Less Developed Areas, Geneva, February 4.-20, 1963
(1963)
Il contributo della meccanica agraria per l'avvaloramento agrario delle regioni tropicali e sub-tropicali : lettura, 18.2.1963
Vitali, Giovanni, (1963)