TY  - BOOK
AU  - 
AU  - Travers, Kenneth J.;Pikaart, Len.;Suydam, Marilyn N.;Runion, Garth E.
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 60452331
SN  - 2
PY  - 1977///];copyright 197746
CY  - New York
PB  - Harper & Row
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Study and teaching
KW  - Mathematics
N1  - Includes index; Bibliography: p. 548-583; 5
ER  -