Library of Congress subject headings :
principles of structure and policies for application /
prepared by Lois Mai Chan for the Library of Congress.
APA Citation
Chan, L. Mai., Library of Congress. (1990). Library of Congress subject headings: principles of structure and policies for application. Annotated version. Washington, D.C.: Cataloging Distribution Service, Library of Congress.
MLA Citation
Chan, Lois Mai, and Library of Congress. Library of Congress Subject Headings: Principles of Structure And Policies for Application. Annotated version. Washington, D.C.: Cataloging Distribution Service, Library of Congress, 1990.