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The population crisis and the use of world resources / ed. by Stuart Mudd ; ass. ed. Hugo Boyko...[et al.].
- Junk,
- 1964.
- The Hague :
-
Saline irrigation for agriculture and forestry / ed. by Hugo Boyko.
- 846.2
- Junk,
- 1968.
- The Hague :
-
Salinity and aridity : new approaches to old problems / ed. by Hugo Boyko.
- Junk,
- 1966.
- The Hague :