http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
it's easy with Genova : the complete guide to do-it-yourself home plumbing, from simple fix-up jobs to plumbing a whole house!
"This book will show you how to do your own plumbing quickly and easily the modern Genova way. The clear instructions and illustrations will show you how to do a simple fix-it job or plumb a whole house!" -- Back cover.