U. S. Army Engg School <br/><br/>
Programmed Instruction Text Aerial Photography  Programmed Instruction Text Aerial Photography Determination of Photo Scale 
U. S. Army Engg School 
 - U. S. Army Engg School, Fort Belvoir, Virginia 
 - 22 P, : 
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<br/><br/><label>Subjects--Topical Terms: </label><br/>MCE
<br/><br/><label>Dewey Class. No.: </label>778.35  / PRO