Cataloging: Fundamentals of the NLM® Classification
Module 6—Form Numbers
page 1 of 6
Introduction
Module 1
Overview of NLM Classification
Module 2
Using the Online NLM Classification
Module 3
Components of NLM Call Numbers
Module 4
General Principles
Module 5
Table G
Module 6
Form Numbers
Module 7
Bibliographies and Related Materials
Module 8
Classification of 19th Century Works and Early Printed Books
Module 9
Continuing Resources
Form Numbers
- Range of numbers in an NLM classification schedule used to classify material by publication type or topical subheading
- Usually numbers 1-39
- Sometimes sections within a schedule (e.g. WO 201-233.1)
- Some numbers in the range of 1 through 39 are not true form numbers, but rather used to classify material with a special emphasis
- 18 is for education
- 21 is for the profession or specialty
- 33 is for discussion of law
Common Form Numbers
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Classification Numbers Publication Type or Specific Aspects 11 History 13 Abbreviations, Dictionary, Encyclopedias 15 Classification, Phrases, Terminology 16 Statistics, Tables 17 Atlases, Pictorial Works 18 Education 18.2 Examination Questions, Problems and Exercises, Outlines, Programmed Instruction 22-22.1 Directory 25 Laboratory Manuals 32-33.1 Legislation 39/49 Handbooks
