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CCTA/CSA FAMA: inter-African co-operation
(CCTA Secreatriat, 1961)
Symposium on soil stabilisation: Nairobi 3-8 October 1960 = Colloque sur la stabilisation des sols: Nairobi 3-8 octobre 1960
(Scientific Council for Africa South of the Sahara = Conseil Scientifique pour l Arique au Sud du Sahara, 1960)