TY  - BOOK
AU  - Robert. W Ritchie
TI  - New Directions in mathematics
U1  - 510 
PY  - 1964///
CY  - Englewood Cliffs
PB  - Prentice Hall Inc
N1  - Robert. W Ritchie: New Directions in mathematics.  Englewood Cliffs.  Prentice Hall Inc, 1964.--(510RIT)
ER  -