TY  - GEN
AU  - Den Bieman,C.F.M.
TI  - Biological and taxonomic differentiation in the ribautodelphax collinus complex (Homoptera, delphacidae)
PY  - 1987///
CY  - Wageningen
PB  - Landbouwuniversiteit
KW  - Taxonomic Diffrerentiation
KW  - Delphacidae
ER  -