Conceptual framework and guidelines for establishing geographic information systems (Preliminary version).
Erik De Man, W.H.
Conceptual framework and guidelines for establishing geographic information systems (Preliminary version). (Book) - Paris Unesco 1984 - 67p. 30 cm.
Geography--Data processing
659.2 ERI / 582
Conceptual framework and guidelines for establishing geographic information systems (Preliminary version). (Book) - Paris Unesco 1984 - 67p. 30 cm.
Geography--Data processing
659.2 ERI / 582