Refine Your Search
Book List
3
-
Report of visit to the University of Sydney, Australia, and the East-West center in Hawaii to discuss recent work on weeds and their control, May 28th - June 4th 1972 / by P.J. van Rijn.
- 881.1
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :
-
Report on the 8th international congress on irrigation and drainage at Varna, Bulgaria, 17th May 1972 - 4th June 1972 / by G.J. Koopman.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :
-
Biology of weeds in relation to control measures / by P.J. van Rijn.
- Koninklijk instituut voor de tropen. Department of agricultural research,
- 1972.
- Amsterdam :