TY - GEN AU - Bernice B Schwab C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1951-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.LCIRC.996 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1951 TI - Letter Circular 996::publications on leather (supersedes Letter Circular 918) ER -