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Creator
- United States. Department of State 9
- Allev, B 1
- Efrat, Moshe, 1927- 1
- Food and Agriculture Organization of the United Nations 1
- Peretz, Don, 1922- 1
- Shchukin, E. A. 1
- Soviet Union. Ministerstvo geologii 1
- United States. Central Intelligence Agency. Office of Research and Reports 1
- Viktorov, V. P. (Vladimir Porfirʹevich) 1
Type
- Text 21
Decade
- 1960-1969 21