http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
2 volumes : illustrations, maps ; 29 cm.
v. 1. Piping and pressure vessels -- v. 2. Shell-and-tube heat exchangers, rotating equipment, bins, silos, stacks.
Includes bibliographical references and index.