TY  - BOOK
AU  - Soponis, Annelle R.
AU  - Morrison, P.E., ed.
TI  - A revision of the nearctic species of orthocladius (Orthocladius) van der Wulp (Diptera: Chironomidae)
U1  - 595.77 21st ed.
PY  - 1977///
CY  - Ottawa
PB  - The Entomological Society of Canada
KW  - Insects-Classification
KW  - Insects-North America-Classification
KW  - Orthocladius-Classification
N1  - Memoirs of The Entomological Society of Canada-no. 102
ER  -