Readership characteristics & attitudes :
service to blind & physically handicapped users /
prepared by the Public Sector Research Group of Market Facts Inc., Washington, D.C. for National Library Service for the Blind and Physically Handicapped, The Library of Congress.
APA Citation
Library of Congress. National Library Service for the Blind and Physically Handicapped., Market Facts, I. Public Sector Research Group. (1981). Readership characteristics & attitudes: service to blind & physically handicapped users. Washington, D.C.: National Library Service for the Blind and Physically Handicapped.
MLA Citation
Library of Congress. National Library Service for the Blind and Physically Handicapped, and Inc. Public Sector Research Group Market Facts. Readership Characteristics & Attitudes: Service to Blind & Physically Handicapped Users. Washington, D.C.: National Library Service for the Blind and Physically Handicapped, 1981.
Warning: These citations may not always be complete (especially for serials).