Langsdorf, Alexander Suss, 1877- Theory of alternating-current machinery / Alexander Suss Langsdorf - 2d ed. International student ed. - New York: McGraw-Hill, c1955. - xix,666 p. illus. 24 cm. Includes index. LCCN: 54011272 Nat. Bib. No.: GB55-7764 Subjects--Topical Terms: Electric machinery--Alternating current. LC Class. No.: TK2711 / .L3 1955 Dewey Class. No.: 621.3133/LAT