TY  - BOOK
AU  - Curtis,Helena
TI  - Biology
SN  - 0879011866
AV  - QH308.2 .C87 1983
U1  - 574 19
PY  - 1983///
CY  - New York, N.Y.
PB  - Worth Publishers
KW  - Biology
N1  - Includes bibliographies and index
ER  -