Ranganathan, S. R. A. (1989). Prolegomena to library classification (3rd ed.).
Chicago Edition CitationRanganathan, S R; Author. Prolegomena to Library Classification. 3rd ed. New Delhi, Ess Ess Publications, 1989.
MLA Edition CitationRanganathan, S R; Author. Prolegomena to Library Classification. 3rd ed. 1989.
Warning: These citations may not always be 100% accurate.