TY  - BOOK
AU  - U. S. Army Engg School
TI  - Programmed Instruction Text Aerial Photography: Programmed Instruction Text Aerial Photography Determination of Photo Scale
U1  - 778.35 
CY  - U. S. Army Engg School, Fort Belvoir, Virginia
KW  - MCE
N1  - 0; 0; 0; 778_350000000000000_PRO
ER  -