TY  - BOOK
ED  - American Institute of Biological Sciences. Biological Sciences Curriculum Study
TI  - Research problems in biology; investigations for students
U1  - 574 
PY  - 1963///-
CY  - Garden City, N.Y.,
PB  - Dobleday
KW  - Biología
N1  - La biblioteca tiene : v.1-4
ER  -