IntroductionFixed Fields016 National Bibliographic Agency Control Number022 International Standard Serial Number024 Other standard identifier034 Coded cartographic mathematical data035 System Control Number040 Cataloging source042 Authentication Code046 Special coded dates050 Library of Congress Call Number053 LC classification number055 Library and Archives Canada Call Number065 Other Classification Number080 Universal Decimal Classification Number082 Dewey Decimal Call Number083 Dewey Decimal Classification Number086 Government Document Call Number087 Government Document Classification Number1XX Headings - General Information100 Heading - Personal Name151 Heading - Geographic Name336 Content Type368 Other attributes of person or corporate body370 Associated place371 Address372 Field of activity373 Associated group374 Occupation375 Gender376 Family information377 Associated language378 Fuller form of personal name380 Form of work381 Other distinguishing characteristics of work or expression382 Medium of performance383 Numeric designation of musical work384 Key385 Audience characteristics386 Creator/contributor characteristics4XX - See From Tracings - General Information5XX - See Also From Tracings - General Information500 See Also From Tracing - Personal Name510 See Also From Tracing - Corporate Name511 See Also From Tracing - Meeting Name530 See Also From Tracing - Uniform Title551 See Also From Tracing - Geographic Name64X Series Numbering Peculiarities642 Series Numbering Example643 Series Place and Publisher/Issuing Body644 Series Analysis Practice645 Series Tracing Practice646 Series Classification Practice663 Complex See Also Reference - Name665 History reference667 Nonpublic general note670 Sources found672 Title related to the entity673 Title not related to the entity675 Sources not found678 Biographical or historical data7XX Heading linking entries781 Subdivision linking entryAppendix 1: Undifferentiated entities