NLM® Classification Fundamentals

Classification of Special Materials


Bibliographies and Related Materials


Abstracts and Indexes

Abstract icon

Follow the same bibliography rules for both abstracts and indexes.


Abstracts

Example

An annotated bibliography on Parkinson’s disease is ZWL 359. MeSH Subjects include Parkinson Disease and Abstracts.


NLM Classification Number
Class Number Caption
WL
Nervous System
Brain Diseases
WL 359 Parkinsonian disorders

Indexes

Example

An index to health science literature in public health is ZWA 100. MeSH Subjects include Public Health and Index.


NLM Classification Number
Class Number Caption
WA
Public Health
Reference Works. General Works
WA 100 General works