TY  - SER
AU  - W.B.H.
TI  - The tectonics of the Canadian shield
KW  - Structural geology
KW  - Precambrian geologic period
KW  - Canadian shield - North America
N1  - This is an Book reviews ofThe tectonics of the Canadian shield. Edited by Stevenson John S. Pp. x + 180, illus, University of Toronto Press, 1962
ER  -