Brown, James Duff, 1862-1914. Manual of library economy / James Duff Brown. - 7th ed., completely rewritten by R. Northwood Lock. - London : Grafton, 1961. - xii, 307 p. : ill. 23 cm. Bibliography: p. 242-256. Subjects--Topical Terms: Library science.Libraries--Great Britain. Dewey Class. No.: 020.2 / BRM 1961