MARC21 – application in the Swiss National Library NL
022 - International Standard Serial Number (R)
First Indicator |
Second Indicator |
| # - No level specified | # - Undefined |
| 0 - Continuing resource of international interest | |
Subfield codes |
|
| $a - International Standard Serial Number (NR) | $z - Canceled ISSN (R) |
| $y - Incorrect ISSN (R) | $2 - Source (NR) |