TY  - BOOK
AU  - Guth,Hans Paul
TI  - Discovering your world
SN  - 0669937657
AV  - PE 1119 G87D 1981
PY  - 1981///
CY  - Lexington, MA
PB  - D.C. Heath and Company
KW  - READERS
N1  - Includes index
ER  -