TY - BOOK AU - Barnwell,George W. TI - The new encyclopedia of machine shop practice: a guide to the principles and practice of machine shop procedure / PY - 1941/// CY - New York : PB - W.H. Wise & Co., inc. KW - TALLER MECANICO UR - https://archive.org/details/BarnwellG.EncyclopediaOfMachineShopPractice1941/page/n1/mode/2up ER -