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Conference on manpower needs and training of environmental sanitation personnel, held in Istanbul, Turkey, September 7-15, 1964
- Central treaty organization,
- [ca. 1964].
- Ankara :
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CENTO seminar on agricultural aspects of arid and semi-arid zones, Tehran, Iran, September 19-23, 1971
- Central treaty organization,
- 1972.
- Ankara :