TY  - BOOK
ED  -  National Advisory Committee on Research in the Geological Science.
TI  -  Twentieth annual report, 1969-1972 : : annual review and reports of Subcommittees
PY  - 1973///
CY  -  Ottawa : 
PB  -  Information Canada, 
KW  -  Geology
KW  -  Research
KW  -  Canada
ER  -