TY  - GEN
TI  - Engineering and Science, Volume 12:9, June 1949
Y1  - 1949/06//
PB  - California Institute of Technology
SN  - 0013-7812
UR  - https://resolver.caltech.edu/CaltechES:12.9.0
CY  - Pasadena, CA
AV  - public
ID  - calteches651
ER  -