TY  - BOOK
AU  - Calladine, C.R.  .
TI  - Understanding DNA: the molecule & how it works / 
SN  - 0-12-155088-5
U1  - G1133 
PY  - 2002///
CY  - London : 
PB  - Academic Press , 
KW  - Molecular biology
ER  -