TY  - BOOK
AU  - Watson,Kenneth
ED  - United States
TI  - Photoclinometry from spacecraft images
U1  - 523.3 
PY  - 1968///.
CY  - Washington: 
PB  - United States Government Printing Office, 
KW  - Slopes (Physical geography)
KW  - Astronautics in astronomy
KW  - Moon
KW  - Surface
N1  - Includes bibliographical references (p. B9-B10)
ER  -