TY  - BOOK
AU  - Guttman,Burton S.
AU  - Hopkins,Johns W III
TI  - Understanding biology
SN  - 0155927019(pbk. )
PY  - 1983///
CY  - New York
PB  - Harcourt Brace Jovanovich
KW  - Biology
N1  - Includes index; Includes bibliographical references
ER  -