TY  - BOOK
AU  - Bernstein Ruth, Bernstein Stephen
AU  - Bernstein Ruth, 
AU  - Bernstein Stephen
TI  - Schaumm's three thousand solved problems in biology
SN  - 0070050228
PY  - 1988///
CY  - New york
PB  - McGraw-Hill
KW  - Biology
KW  - problems
KW  - exercises
ER  -