Phillps data and Handbook pt. 4, magnetic materials- white ceramics Philips Gloeilanapenfabrieken - Netherland Technical Publications Department 1969 - [various pagings.] ISBN: 9399-491-07301 Subjects--Topical Terms: Astronomy and Astrophysics ThesaurusElectronics Universal Decimal Class. No.: (035)621.38 / PDH-69:4