Thompson, Richard J.  1965-, <br/><br/>
CRYSTAL CLEAR :  The Struggle for Reliable Communications Technology in World War II / 
RICHARD J. THOMPSON, JR. 
 - a viii, 230, [24] pages of plates :  illustrations, map ;  25 cm. 
<br/><br/>Includes bibliographical references (p. 183-217) and index 
<br/><br/><label>ISBN: </label>0470046066 9780470046067 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. Army.  Signal Corps --History--World War, 1939-1945.<br/>United States. Army --Communication systems--History.
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oscillators, Crystal.<br/>Quartz crystals.<br/>World War, 1939-1945--Communications.