Langridge, D. W. (1976). Classification and indexing in the humanities. Butterworths.
Chicago Style (17th ed.) CitationLangridge, Derek Wilton. Classification and Indexing in the Humanities. London: Butterworths, 1976.
MLA (9th ed.) CitationLangridge, Derek Wilton. Classification and Indexing in the Humanities. Butterworths, 1976.
Warning: These citations may not always be 100% accurate.