TY  - BOOK
AU  - Richards,W.R.
TI  - A synopsis of the Genus Rhopalosiphum in Canada (Homoptera : Alphidi dae) / 
U1  - 595.752 
PY  - 1960///
CY  - Ontario : 
PB  - Entomology Research Institue, 
KW  - Hamoptera
KW  - Canada
KW  - Alphididae
KW  - Rhopalosiphum
N1  -  Includes bibliographical references
ER  -