A         GENERAL WORKS   AE              Encyclopedias  AY             Almanacs B-BJ   PHILOSOPHY  BF              Psychology  BL-BX Religion C         HISTORY  CB              History of Civilization  CC              Archaeology  CT              General Biography D         HISTORY  DA-DQ            European History  DK             Russian History  DS-DT       Asian, African History E          U.S. HISTORY  E186           Colonial History  E456           Civil War  E740           Twentieth Century F          HISTORY OF THE AMERICAS  F1               State Histories  F381           Texas  F1001         Canada  F1201         Mexico. Latin America G         GEOGRAPHY    GN              Anthropology. Ethnology  GR-GT Folklore. Manner. Customs  GV              Dance. Sports. Amusements H         SOCIAL SCIENCES  HA             Statistics  HB-HD      Economics  HD1361     Real Estate  HF              Business  HM            Sociology  HQ             The Family. Marriage. Women  HV        Welfare. Criminology J          POLITICAL SCIENCE  JK       U.S.  JS        Local  Government  JX       International Relations K         LAW  KF              U.S. Law  KFT           Texas Law L          EDUCATION M        MUSIC

N         FINE ARTS NA-NB Architecture. Sculpture NC-NE        Drawing. Painting. Prints NK              Crafts P          LANGUAGE AND LITERATURE PA               Classical Language, Literature PC2001       French Language PC4001       Spanish Language PE                English Language PE1128         English as a Second Language PF                German Language PL                Japanese. Korean. Chinese Languages PN               Poetry. Theater. Speech. Journalism PQ1             French Literature PQ6001       Spanish Literature PR               British Literature PS                American Literature PT               German Literature PZ               Children's, Young Adult Literature Q         SCIENCE QA              Mathematics QA76          Computer Science QB               Astronomy QC               Physics QD              Chemistry QE               Geology QH              Natural History QH301        Biology QK-QL        Botany. Zoology QM-QP       Human Anatomy. Physiology QR               Bacteriology R         MEDICINE S         AGRICULTURE SB               Horticulture T         TECHNOLOGY TA-TH        General Engineering. Construction TJ                Mechanical Engineering TK               Electrical Engineering. Electronics TL               Motor Vehicles, Aeronautics TN-TP        Mining. Metallurgy. TR               Photography TS                Manufacturing. Quality Control TT-TX        Handicrafts. Home Economics U-V     MILITARY SCIENCE AND NAVAL SCIENCE   Z  BIBLIOGRAPHY, PUBLISHING, LIBRARY SCIENCE