LEADERThe leader has no indicators or subfield codes; the data elements are positionally defined.00-04 Logical record length 05 Record statusa Increase in encoding level c Corrected or revised d Deleted n New p Increase in encoding level from prepublication06 Type of recorda Printed language material c Printed music e Printed cartographic material f Manuscript cartographic material g Projected medium i Nonmusical sound recording j Musical sound recording k Two-dimensional nonprojectable graphic m Computer file o Kit p Mixed material r Three-dimensional artifact or naturally occurring object t Manuscript language material07 Bibliographic levela Monographic component part b Serial component part c Collection d Subunit m Monograph/item s Serial08 Type of Control# No specified type a Archival09 Undefined 10 Indicator count 11 Subfield code count 12-16 Base address of data 17 Encoding Level# Full level 1 Full level, material not examined 2 Less then full level, material not examined 3 Abbreviated level 4 Core level 5 Partial (preliminary) level 7 Minimal level 8 Prepublication level u Unknown z Not applicable18 Descriptive cataloging form# Non ISBD a AACR2 i ISBD u Unknown19 Linked Record requirement# Related record not required r Related record required