TY  - BOOK
AU  - Umstattd, James Greenleaf,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1944///46
CY  - Boston ;;New York [etc.]
PB  - Ginn and company
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Teaching.;Education, Secondary
N1  - Selected references for further study at end of each chapter; 5
ER  -