http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
From machine shop to industrial laboratory
telegraphy and the changing context of American invention, 1830-1920
viii, 251 pages : illustrations ; 25 cm.
Includes bibliographical references (pages 223-244) and index.
Johns Hopkins studies in the history of technology ; new ser., no. 14