TY  - GEN
AU  - Oberholtzer, Betty L
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1973-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.SP.305supp4
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1973
TI  - Publications of the National Bureau of Standards 1972 Catalog:
ER  -