@book{1317,
	author = {Schumann, Willy.},
	title = {Grundlehre für Metallwerker, Fachkunde, Fachrechnen, Fachzeichnen,},
	publisher = {Diesterweg;},
	year = {1943.},
	series = {Fachkunde},
	address = {Frankfurt am Main,},
	note = {"Zahlentafel" (26 p.) laid in.}
}