قالب:Roe1916

Roe، Joseph Wickham (1916)، English and American Tool Builders، New Haven, Connecticut: Yale University Press، LCCN:16011753. Reprinted by McGraw-Hill, New York and London, 1926 (LCCN 27-24075); and by Lindsay Publications, Inc., Bradley, Illinois, (ISBN 978-0-917914-73-7).