Cataloging: Fundamentals of the NLM® Classification

http://www.nlm.nih.gov/tsd/cataloging/trainingcourses/classification/mod9_050.html

Cuttering of Serial Call Numbers

* Cutters are only assigned to tangible serial resources. E-journals and other serials on the Internet do not have a cutter added to the W1 or other serial classification number

* Dates are not assigned to serial call numbers

* NLM assigns complete call numbers to all serials at the point of order

Cuttering of W1 Call Numbers

* The cutter is based on the title established for the serial at the point of order, using the Cutter-Sanborn Three Figure Author Table (1969 ed.)

* A W1 cutter consists of the first two letters of the main entry in uppercase letters, followed by the Cutter-Sanborn number (may be extended up to four digits and/or additional uppercase letters if needed to make the cutter unique). However, numbers will be adjusted to make the title fit in proper alphabetical order with other NLM titles
W1 Examples

* Journal title: Masters in cardiology
o 060 00 $a W1 $b MA423

* Title: Journal of psychiatric education
o 060 00 $a W1 $b JO867S
+ Additional digit and uppercase letter needed because so many titles begin with "Journal"

* Title: Journal of psychiatric educators
o 060 00 $a W1 $b JO867SB
+ Two uppercase letters supplied so the titles shelve properly

* Title: Online health journal $h [electronic resource].
o 060 00 $a W1
+ Title is online only, no cutter is supplied