TY  - BOOK
AU  - Welch,Claude A.
ED  - Biological Sciences Curriculum Study.
TI  - Biological science: molecules to man / 
T2  - Houghton Mifflin science program
SN  - 0395144353
AV  - QH308.7 .B56 1973
U1  - 574 
PY  - 1973///]
CY  - Boston : 
PB  - Houghton Mifflin, 
KW  - Biology
KW  - Juvenile literature
N1  - Includes bibliographical references
ER  -