Snoek, Jacob Louis, 1902- New developments in ferromagnetic materials : with introductory chapters on the statics and the dynamics of ferromagnetism / by J.L. Snoek - New York : Elsevier Pub. Co., 1947. - viii, 136 p. illus. 21 cm. Subjects--Topical Terms: MATERIALES ELECTRICOSMAGNETISMO Universal Decimal Class. No.: 621.3