TY  - BOOK
AU  - Gay,David
TI  - Geometry by discovery
SN  - 0471041777 (acid-free paper)
AV  - QA453GAY 1998 
PY  - 1998///
CY  - New York
PB  - J. Wiley
KW  - Geometry
N1  - Includes bibliographical references and index
ER  -