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Lua i Stíl Chicago (17ú heag.)United States. Library of Congress, Helen Savage, Kathleen D. Droste, agus Rita Runshock. Library of Congress Classification Schedules Combined with Additions and Changes Through 1986 Class A: General Works. Detroit: Gale Research Inc, 1987.
Lua MLA (9ú heag.)United States. Library of Congress, et al. Library of Congress Classification Schedules Combined with Additions and Changes Through 1986 Class A: General Works. Gale Research Inc, 1987.
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