Chan, Lois Mai. A Guide to the Library of Congress Classification / Lois Mai Chan - 5th ed - Englewood, Colo : Libraries Unlimited, 1999 - 551 p - Library and Information Science Text Series . ISBN: 1563085003 / 2,970 Subjects--Topical Terms: Classification, library of congress. LC Class. No.: Z696.U4 / C47 G4 1999