TY  - RPRT
TI  - Circular of the Bureau of Standards no. 448: permanent magnets
AU  - Sanford, Raymond L
PY  - 1944
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 448
DO  - 10.6028/NBS.CIRC.448
ER  -