TY  - BOOK
AU  - Spurr, Stephen Hopkins.
TI  - Photogrammetry and photo-interpretation: with a section on appli cations to forestry 
U1  - 634.93 SPU 
PY  - 1960///]
CY  - New York
PB  - Ronald Press Co.
KW  - Forest surveys
KW  - Photographic surveying
KW  - Aerial photography
N1  - Includes bibliographical References
ER  -