TY  - BOOK
AU  - Estvan,Frank J.
TI  - Social studies in a changing world: curriculum and instruction
AV  - H62 .E75
U1  - 300/.7 
PY  - 1968///]
CY  - New York
PB  - Harcourt, Brace & World
KW  - Social sciences
KW  - Study and teaching
N1  - Includes bibliographies
ER  -