TY  - BOOK
AU  - Hanna,Lavone Agnes
TI  - Unit teaching in the elementary school: social studies and related sciences 
U1  - 372.83 
PY  - 1963///
CY  - New York
PB  - Holt, Rinehart and Winston
KW  - Social sciences
KW  - Study and teaching (Elementary)
KW  - Violence
KW  - United States
N1  - Beginning with 3d ed. (1973) published under title: Dynamic elementary social studies
ER  -