TY  - BOOK
AU  - Hopson,Janet L..
AU  - Wessells,Norman K.
TI  - Essentials of biology
SN  - 0075571080
AV  - QH308.2 .C86 1989
PY  - 1990///
CY  - New York, N.Y.
PB  - McGraw-Hill  Publishing company
KW  - Biology
ER  -