TY  - RPRT
TI  - Circular of the Bureau of Standards no. 563: periodicals and serials received in the library of the National Bureau of Standards, April 1955
AU  - Hopper, Natalie J
PY  - 1955
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS CIRC 563
DO  - 10.6028/NBS.CIRC.563
ER  -