TY  - BOOK
AU  - Eardley, Armand John,
AU  - Eardley, Armand John,
TI  - Aerial photographs: their use and interpretation 
AV  - QE33 E37
PY  - 1942///
CY  - New York
PB  - Harper
KW  - Fotografía aérea
KW  - Geología
KW  - Mapas
N1  - "a revised and expanded edition of interpretation of geologic maps and aerial photographs"
ER  -