TY  - BOOK
AU  - Castetter E.F.
AU  -  Dittmer H.J.
AU  -  Koster W.J.
TI  - Laboratory manual General biology
U1  - G:f3, J6                 CL 
PY  - 1956///
CY  - Minnesota
PB  - Burgess Publisher Co.     
KW  -  Natural history
KW  - Biology
ER  -