TY  - BOOK
AU  - Blackman, R. L. 
TI  - Aphids on the world's trees : : an identification and information guide 
SN  - 0851988776
U1  - 595.752 
PY  - 1994///
CY  - Wallingford
PB  - CAB International in association with the Natural History Museum
KW  - Aphids on the world's tree
N1  - Includes index
ER  -