Library of Congress. Processing Services, Library of Congress. Collections Services, Library of Congress. Library Services, & Hiatt, R. M. Cataloging service bulletin. Library of Congress, Processing Services.
Chicago Style (17th ed.) CitationLibrary of Congress. Processing Services, Library of Congress. Collections Services, Library of Congress. Library Services, and Robert M. Hiatt. Cataloging Service Bulletin. Washington: Library of Congress, Processing Services.
MLA (9th ed.) CitationLibrary of Congress. Processing Services, et al. Cataloging Service Bulletin. Library of Congress, Processing Services.
Warning: These citations may not always be 100% accurate.