Gale Group. (2007). Super LCCS: Gale's Library of Congress classification schedules combined with additions and changes through 2006. Thomson Gale.
Chicago-Zitierstil (17. Ausg.)Gale Group. Super LCCS: Gale's Library of Congress Classification Schedules Combined with Additions and Changes Through 2006. Detroit: Thomson Gale, 2007.
MLA-Zitierstil (9. Ausg.)Gale Group. Super LCCS: Gale's Library of Congress Classification Schedules Combined with Additions and Changes Through 2006. Thomson Gale, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.