Sketchbook headed CAHIERS DE CROQUIS (20/02/2005)
The 4 Series are indicated under the titles :
- Boundaries and Delimitations inside Mining Territories (Serie A),
- Plurilinear Boundaries (Serie B),
- Single Mineral Cross-Boundary Deposits (Serie C),
- Private Leases and Public Lands in the United States of America (Serie D).
12:40 Écrit par Jean Pierre Bouvet | Lien permanent | 
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