TWENTY-FIRST CENTURY
TWENTY-FIRST CENTURY collection
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Title: The earth's impending physical environment round the year 2000 and the problems of the developing countries, vol. 2
Date published: 1974
Publisher: Institute of Geophysics, Tehran University -
Title: The earth's impending physical environment round the year 2000 and the problems of the developing countries, vol. 3
Date published: 1975
Publisher: Institute of Geophysics, Tehran University