The Wheel Point Method of Survey and Measurement of Semi-Open Grasslands & Karoo Vegetation in South Africa by Tidmarsh and Havenga. Pretoria: The Government Printer, 1955. 

Satisfaction guaranteed on all items offered. I will gladly combine offerings to save on postage. We appreciate good packaging when we purchase items and we return the favor. We have a warehouse and a very large selection of general stock inside Bargain Hunters in Knoxville, TN. This is our full time work and has been since 1991. We are always interested in purchasing material for stock. 

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John Coleman, Bookseller 

The Book Eddy