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RANGANATHAN, Shiyali R., 1967. Prolegomena to library classification. 3. ed. London: Asia Publ. House. Ranganathan series in library science, 20.

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Ranganathan, Shiyali R.: Prolegomena to library classification, . Ranganathan series in library science, 3. ed. Aufl. London 1967.

Ranganathan, S.R. (1967), Prolegomena to library classification, Ranganathan series in library science, 3. ed., Bd. , Asia Publ. House, London.