TY  - GEN
AV  - public
ID  - calteches213
TI  - Engineering and Science, Volume 4:2, December 1940
Y1  - 1940/12//
PB  - California Institute of Technology
SN  - 0013-7812
UR  - https://resolver.caltech.edu/CaltechES:4.2.0
CY  - Pasadena, CA
ER  -