| Main centres: | 1-3 business days |
| Regional areas: | 3-4 business days |
| Remote areas: | 3-5 business days |
Softcover edited by D.J.L. Visser, papers and discussions presented at the symposium held at Salisbury, October 1967. Some wear, marks and creasing to wraps, pages clean and unmarked, and foldout maps. charts and diagrams intact.
