Immroth, J. P. (1971). Analysis of vocabulary control in Library of Congress classification and subject headings. Libraries Unlimited.
Cita Chicago (17th ed.)Immroth, John Phillip. Analysis of Vocabulary Control in Library of Congress Classification and Subject Headings. Littleton, Colo: Libraries Unlimited, 1971.
Cita MLA (9th ed.)Immroth, John Phillip. Analysis of Vocabulary Control in Library of Congress Classification and Subject Headings. Libraries Unlimited, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.