TY  - BOOK
ED  - Symposium on the Use of Isotopes in Biological Research
TI  - Report
AV  - QH505 .S92
U1  - 574.1072 
PY  - 1947///]
CY  - [Washington?
KW  - Isotopes
KW  - Radioactive tracers in biology
N1  - Cover title; "Sponsored by the Committee on Growth of the National Research Council."
ER  -