http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
EGSA ... annual buying guide to power generation systems and services
Annual buying guide to power generation systems, and services
Electrical Generating Systems Assocation ... annual buying guide to power generation systems and services
Electrical Generating Systems Association (U.S.)
Published as a supplement to: Diesel progress North American.
EGSA ... buying guide to power generation components, systems and services