Gale Research Inc & Gale Group. (2007). Super LCCS : Gale's Library of Congress classification schedules: Combined with additions and changes through 2006. Thomson Gale.
Citazione stile Chigago Style (17a edizione)Gale Research Inc e Gale Group. Super LCCS : Gale's Library of Congress Classification Schedules: Combined with Additions and Changes Through 2006. Detroit: Thomson Gale, 2007.
Citatione MLA (9a ed.)Gale Research Inc e Gale Group. Super LCCS : Gale's Library of Congress Classification Schedules: Combined with Additions and Changes Through 2006. Thomson Gale, 2007.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.