TY  - GEN
AU  - Cohen, Norman
AU  - MacQueen, Hilary
TI  - Science matters : genetic engineering 
SN  - 0749251042
U1  - 575.10724 
PY  - 1993///
CY  - Milton Keynes
PB  - The Open University
KW  - BIOLOGY
KW  - SPECIFIC PARTS OF AND PHYSIOLOGICAL SYSTEMS IN PLANT
ER  -