TY  - BOOK
AU  - Hake,Jonathan C
AU  - Baker,Jeffrey J.W.
AU  - Allen,Garland E
TI  - Twelve problems in biology: open-ended experiments for introductory college biology 
SN  - 0201003791
PY  - 1971///
CY  - Reading, Mass.
PB  - Addison-Wesley
KW  - Biology
KW  - Experiments
N1  - Includes bibliographies
ER  -