WILSON, J.C. Television engineering. Lond., 1937. xv, 492, 21, (3) pp. Ocl. (Spine ends slightly frayed). -- R.F. YATES. ABC of Television or Seeing by Radio. NY, 1929. viii, 210, (36) pp. Ocl. -- W.W. STIFLER, ed. High-speed computing devices. NY, (etc.), 1950. xiii, 451 pp. Ocl. -- 3 vols. First editions.
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