Sobel, Robert
Our changing world : man, the world, and the social studies / Robert Sobel - California : Laidlaw Brothers, 1969. - 728 p. ill.
Include index
Social change
Social sciences--Study and teaching
910 S677O 1969
Our changing world : man, the world, and the social studies / Robert Sobel - California : Laidlaw Brothers, 1969. - 728 p. ill.
Include index
Social change
Social sciences--Study and teaching
910 S677O 1969