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Library of congress classification

system of library classification developed by the United States Library of Congress

Pronunciation
/ˈlaɪbəri əv ˈkɑŋɡrəs ˌklæsəfəˈkeɪʃən/
/ˈlʌɪbrəri əv ˈkɒŋɡrɛs ˌklasɪfɪˈkeɪʃən/