English
"Manuscript and illustrations for this volume were prepared for publication by the Summary Reports Group of the Columbia University Division of War Research under contract OEMsr-1131 with the Office of Scientific Research and Development. This volume was printed and bound by the Columbia University Press"--Unnumbered page ii · LC Science, Business & Technology copy no. 35 · In a set of declassified documents held as a collection by the Library of Congress · xi, 172 pages : 28 cm
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Submarine warfare · Electronic apparatus and appliances · Electronic apparatus and appliances · Submarine warfare