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Scientific problems of the humid tropical zone deltas and their implications : proceedings of the Dacca symposium, 24 February to 2 March 1964 = Les problèmes scientifiques des deltas de la zone tropicale humide et leurs implications : actes du colloque de Dacca, 24 février-2 mars 1964 / [contrib. by J. Tricart...et al.].
- UNESCO,
- 1964.
- Paris :
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The teaching of sciences in African universities : report of the Seminar on the teaching of basic sciences in African universities, Rabat, 13 to 22 December 1962 / United Nations educational, scientific and cultural organization ; [contrib. by T.L. Green...et al.].
- 86
- UNESCO,
- 1964.
- Paris :
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Land use in semi-arid Mediterranean climates : Unesco/International geographical union sumposium, Iraklion (Greece), 19-26 September 1962 = Utilisation des terres en climat semi-aride méditerranéen : colloque Unesco/Union géographique internationale, Héraklion (Grèce), 19-26 septembre 1962 / [contrib. by Peveril Meigs...et al.].
- 859
- UNESCO,
- 1964.
- Paris :