ASIMOV, ISAAC. - Worlds Within Worlds: The Story of Nuclear Energy (Two Volumes).

Washington:: United States Energy Research and Development Administration, 1972. Paperback. An incomplete set: the first two volumes of three. Volume 1: Atomic Weights, Energy, Electricity. Volume 2: Mass and Energy, The Neutron, The Structure of the Nucleus. First editions (paperback). Both volumes are very good or better in illustrated stapled wraps. Very Good . International orders are billed at cost: . 00 for a book of average size and weight, more for oversize or heavier volumes

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