http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Printed circuit board precision artwork generation and manufacturing methods
"A revision of Preben Lund's Generation of precision artwork for printed circuit boards originally published in 1978 by Wiley-Interscience"--Verso title page.
Generation of precision artwork for printed circuit boards