http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Report on the oil fields of northwest Germany
xviii, 87 pages including frontispiece, illustrations, diagram : folded map. ; 24 cm.
by Ira Rinehart; with information on operation practices, methods of leasing, taxes, customs duties, oil markets, etc.