TY  - BOOK
AU  - Sambrook J
AU  -  Fritsch E F
AU  -  Maniatis T
TI  - Molecular clonning: A laboratory manual.3V
U1  - G9M:68:f3, M9.1-M9.3 
PY  - 1989///
CY  - America
PB  - CSH       
ER  -