TY  - BOOK
AU  - Canada, Nat. Res. Council
AU  - Canada, Nat. Res. Council
TI  - Canadian Journal Of Res. Sec. A. Physical Sci
U1  - Cm72:N29 
PY  - 1949///
CY  - Canada
PB  - Nat. Res. Council
KW  - Cm72:N29
ER  -