TY  - BOOK
AU  - Calvin,Melvin
TI  - Isotopic carbon: Techniques in Its  Measurement and Chemical Manipulation 
U1  - 539.183.2 
PY  - 1949///
CY  - New York
PB  - John Wiley & Sons, INC.
KW  - Chemistry
N1  - Bibliogr.: p. 341 - 350
ER  -