TY  - BOOK
AU  - Oliver,Carl
AU  - Sobel, Robert.
TI  - Our changing world: man, the world, and the social studies 
U1  - 910 23
PY  - 1969///
CY  - Palo Alto, Calif : 
PB  -  Laidlaw Bros.
KW  - Social change
KW  - Social sciences
KW  - Study and teaching
KW  - Geography
N1  - Includes index
ER  -