TY  - BOOK
AU  - Sobel,Robert
AU  - Oliver,Carl
TI  - Our changing world : man, the world, and the social studies
U1  - 910 S677O 1969 
PY  - 1969///
CY  - California
PB  - Laidlaw Brothers
KW  - Social change
KW  - Social sciences
KW  - Study and teaching
N1  - Include index
ER  -