TY  - JOUR
TI  - The mayflies, or Ephemeroptera, of Illinois
T2  - Bulletin
VL  - 26
UR  - https://www.biodiversitylibrary.org/part/97188
PB  - State of Illinois, Dept. of Registration and Education, Natural History Survey Division
CY  - Urbana
PY  - 1953
SP  - 1
EP  - 216
AU  - Burks, B. D. (Barnard DeWitt),
ER  -