Bushnell, G. H. (1951). The Reference librarian in university, municipal and specialized libraries. Grafton.
Citace podle Chicago (17th ed.)Bushnell, George Herbert. The Reference Librarian in University, Municipal and Specialized Libraries. London: Grafton, 1951.
Citace podle MLA (9th ed.)Bushnell, George Herbert. The Reference Librarian in University, Municipal and Specialized Libraries. Grafton, 1951.
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