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Saline water conversion : a collection of papers comprising the Symposium on saline water conversion, presented before the Division of water and waste chemistry at the 137th national meeting of the American chemical society, Cleveland, Ohio, April 1960 / [contrib. by J.W. O'Meara...et al.].
- American Chemical Society,
- 1960.
- Washington, DC :
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Yemen on the threshold / by Erich W. Bethmann.
- 858.2
- American friends of the Middle East,
- 1960.
- Washington, DC :