TY  - BOOK
AU  - Freifelder David
TI  - DNA molecule structure and properties: original paers analysis and problems
T2  - Series of books in biology
U1  - E9G,8,3N:2, L8 
PY  - 1978///
CY  - San Francisco 
PB  -  W H Freeman      
KW  -  Heterocyclic biochemistry
KW  -  Organic chemistry
KW  - Chemistry
ER  -