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The State University of New York at FredoniaReed Library

Communication Disorders & Sciences: Library of Congress (LC) Call Numbers

About the Library of Congress Classification System

SUNY Fredonia uses the Library of Congress Classification System (LCC) to assign call numbers to most print materials--books, periodicals, and music scores.

The Library of Congress Classification System is divided into large subject areas which are called "classes." All classes--and subclasses--begin with one, two, or three letters followed by a number which represents more specific aspects of a subject.

This page shows you how to read a call number and lists call number ranges for communication disorders and sciences materials.

Locating Books in Reed Library

Books on biology can be found under classes RC and RF:

LC Call Numbers Description
RC423.A2 → Z Communicative Disorders. Speech & Language Disorders (General)
RC424 Stuttering
RC424.5 Cluttering
RC424.7 Articulation Disorders
RC425 → 425.7 Aphasia
RC426 Echolalia
RC427 Speech Clinics
RC428 Study & Teaching of Speech Therapy
RC428.5 Speech Therapy as a Profession
RC428.8 Psychological Aspects
RF290 Audiology. Hearing Disorders, Deafness (General)
RF291.3 Problems, Exercises, Examinations
RF291.5.A → Z By Age Group, Class, Profession, etc., A → Z
RF292 → 292.8 Congenital & Hereditary Deafness
RF293 Psychogenic & Neurogenic Deafness
RF293.4 Postlingual Deafness
RF293.5 Noise-Induced Deafness. Acoustic Trauma
RF293.6 Sudden Hearing Loss
RF293.7 Hyperacusis
RF293.8 Tinnitus
RF294 → 294.5 Clinical Hearing Tests. Audiometry
RF298 → 310 Instruments, Apparatus & Appliances
RF320 Deaf-mutism

These books are located on the third and fourth floors of the Carnahan-Jackson Center.

Accessibility Statement

Reed Library is dedicated to making information accessible for everyone. If you notice an accessibility issue within this guide, please contact Katelynn Telford at

Daniel A. Reed LibraryThe State University of New York at Fredonia • 280 Central Ave., Fredonia, NY 14063 • 716-673-3184 • Fax: 716-673-3185 •