Crewe, H.T. The practical electrician's pocket book for 1912 / edited by H.T. Crewe. - London : S. Rentell, [1912]. - lxxii, 396 p. : ill., charts ; 14 cm. - 621.3 (NLA) . Subjects--Topical Terms: Electricity--Handbooks, manuals, etc. Universal Decimal Class. No.: 621.3 (NLA)