Sparks, Marshall. Ferromagnetic-relaxation theory / Marshall Sparks. - New York, McGraw-Hill c1964. - xiii, 227 p. illus. 24 cm. - McGraw-Hill advanced physics monograph series . "Bibliography and author index": p. 211-224. LCCN: 64018904 Subjects--Topical Terms: Ferromagnetism. LC Class. No.: QC761 / .S665 Dewey Class. No.: 538.2/SPF