TY  - BOOK
AU  - Proga, Rosanne.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 0871504529 (hardback)
SN  - 2
PY  - 1984///;copyright 198446
CY  - Boston, MA
PB  - Prindle, Weber & Schmidt
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Mathematics
N1  - Includes index; 5
ER  -