LEADER
The leader has no indicators or subfield codes; the data elements are
positionally defined.
00-04 Logical record length
05 Record status
a Increase in encoding level
c Corrected or revised
d Deleted
n New
p Increase in encoding level from prepublication
06 Type of record
a 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 material
07 Bibliographic level
a Monographic component part
b Serial component part
c Collection
d Subunit
m Monograph/item
s Serial
08 Type of Control
# No specified type
a Archival
09 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 applicable
18 Descriptive cataloging form
# Non ISBD
a AACR2
i ISBD
u Unknown
19 Linked Record requirement
# Related record not required
r Related record required