APA (7th ed.) Citation

Palmer, B. I., & Wells, A. J. (1951). The Fundamentals of library classification. Allen & Unwin.

Chicago Style (17th ed.) Citation

Palmer, Bernard Ira, and Arthur James Wells. The Fundamentals of Library Classification. London: Allen & Unwin, 1951.

MLA (9th ed.) Citation

Palmer, Bernard Ira, and Arthur James Wells. The Fundamentals of Library Classification. Allen & Unwin, 1951.