Add entry: MARC21 -> UNIMARC conversion

_source/_posts/2023-10-01-import-lc-records-into-pmb.markdown

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+---
+layout: post
+title: "Importing Libray of Congress records into PMB"
+date: 2023-10-01 18:12:00 +0100
+comments: true
+categories:
+---
+
+Wanted to import the [Library of Congress record](https://lccn.loc.gov/83020232) for my Webster's dictionary.
+It failed with an obscure message (*notices invalides*). Looking at the code, this could be caused by a missing title statement (UNIMARC tag `$200a`).
+And indeed upon inspection the title is in MARC zone `$245`:
+
+``` MARC21 record
+00953cam a2200253 a 4500
+001 4715262
+005 20140505111109.0
+008 831102s1984    nyuaf    d    000 0 eng
+906    $a 7 $b cbc $c orignew $d 1 $e ocip $f 19 $g y-gencatlg
+010    $a    83020232
+020    $a 0671418149
+035    $9 (DLC)   83020232
+040    $a DLC $c DLC $d DLC
+050 00 $a PE1625 $b .W34 1984b
+082 00 $a 423 $2 19
+245 00 $a Webster's New World dictionary of the American language / $c David B. Guralnik, editor in chief.
+250    $a 2nd college ed.
+260    $a New York, N.Y. : $b Simon and Schuster, $c c1984.
+300    $a xxxvi, 1692 p., [36] p. of plates : $b ill. (some col.) ; $c 29 cm.
+650  0 $a English language $z United States $x Dictionaries.
+650  0 $a Americanisms $x Dictionaries.
+700 1  $a Guralnik, David B. $q (David Bernard), $d 1920-2000.
+991    $b c-GenColl $h PE1625 $i .W34 1984b $t Copy 1 $w BOOKS
+991    $b c-GenColl $h PE1625 $i .W34 1984b $p 00017698631 $t Copy 2 $w CCF
+```
+
+Turns out that the LoC notice is in MARC21 format, whereas PMB expects UNIMARC.
+So I used [MarcEdit](https://marcedit.reeset.net/) to convert MARC21 to UNIMARC and was able to import.
+
+Conversion process: `Tools > UNIMARC Tools > MARC21=>UNIMARC`
+
+``` UNIMARC record
+00812  22a22002415  450
+001 4715262
+005 20140505111109.0
+100    $a 19831102s1984    u||y0   y        0
+105    $a         000|y
+106    $a y
+110    $a zkue   0|||
+010    $a 0671418149
+200 0  $a Webster's New World dictionary of the American language / $f David B. Guralnik, editor in chief.
+205    $a 2nd college ed.
+210    $a New York, N.Y. : $c Simon and Schuster, $d c1984.
+215 1  $a xxxvi, 1692 p., [36] p. of plates : $c ill. (some col.) ; $d 29 cm.
+606    $a English language $x Dictionaries. $y United States
+606    $a Americanisms $x Dictionaries.
+676    $a 423 $v 19
+680    $a PE1625 $b .W34 1984b
+701    $a Guralnik $b David B. $f 1920-2000. $g (David Bernard),
+721    $a Guralnik, David B. $f 1920-2000.
+802    $a zz
+```