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APA-viiteRichardson, E. C. (1912). Classification, theoretical and practical: Together with an appendix containing an essay towards a bibliographical history of system of classification.
Chicago-tyylinen lähdeviittausRichardson, Ernest Cushing. Classification, Theoretical and Practical: Together with an Appendix Containing an Essay Towards a Bibliographical History of System of Classification. New York, 1912.
MLA-viiteRichardson, Ernest Cushing. Classification, Theoretical and Practical: Together with an Appendix Containing an Essay Towards a Bibliographical History of System of Classification. 1912.
Harvard-tyylinen lähdeviittausRichardson, E. C. 1912. Classification, theoretical and practical: Together with an appendix containing an essay towards a bibliographical history of system of classification. New York.