Refine Your Search
Book List
4
-
Studies on the black spot disease of citrus caused by Guignardia citricarpa kiely, with particular reference to its epiphytology and control at Letaba / by Johannes Marthinus Kotze.
- 865.1
- University of Pretoria,
- 1963.
- Pretoria :
-
Agriculture in the economic development of South Africa
- 865.1
- Department of agricultural technical services,
- 1963.
- Pretoria :
-
South West Africa : a special report / by Anthony Harrigan.
- Department of Information,
- 1963.
- Pretoria :
-
Soil Conservation in South Africa / J. C. Ross.
- Government printer,
- 1963.
- Pretoria :