Format:
31 S.
,
Ill., graph. Darst., Kt.
,
2 Kt.-Beil.
,
25 cm
Series Statement:
Paper / Geological Survey of Canada, Department of Energy, Mines and Resources [19]73,40
Note:
Part of illustrative matter in pocket
,
Bibliography: S. 30 - 31
,
Zusammenfassung in französich
Language:
English