TY  - RPRT
TI  - Jar rings for use in home canning : their testing and a proposed specification/
AU  - Wheeler, Helen G
AU  - Taylor, Rolla H
PY  - 1945
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NBS MP 181
DO  - 10.6028/NBS.MP.181
ER  -