Christopher E Tibbs; G G Johnstone — Frequency Modulation Engineering

London, Chapman And Hall, 2nd Edition, Revised second edition, and bar light toning and some minor spotting to endpapers, in VG+ clean and bright internal order throughout. No inscriptions. Green cloth faded to extremities and spine and lightly worn. 8vo. xii, 435pp, Very Good, No Jacket, 8vo - over 7¾ - 9¾" tall, 447