TY  - BOOK
AU  - Helen Harris Perlman.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 226660338
SN  - 2
PY  - 1957///46
CY  - Chicago
PB  - The University of Chicago press
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
N1  - 5
ER  -