TY  - BOOK
AU  -  Walker , John M.
AU  - Gaastra, Wim.
TI  - Techniques in molecular biology
SN  - 978070936732
U1  - 574.8 
PY  - 1987///
CY  - Croom Helm
PB  - London
KW  - Molecular biology
N1  - Includes bibliographical references and index
ER  -