TY  - BOOK
AU  - Penney, David E.
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 2
PY  - 1972///]46
CY  - Menlo Park, CA
PB  - W. A. Benjamin
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Mathematics
N1  - Includes bibliographies; 5
ER  -