PakCat catalogue record Variable impedance devices By Howes, M. J. Bibliographic details ISBN0471996513 PublisherWiley Publication placeChichester [Eng.] Publication year1978 LanguageEnglish Material typeBook Physical descriptionxii, 291p. Additional authorsMorgan, D. V. SubjectsDiodes, Semiconductor., Mixing circuits., Oscillators, Microwave.