TY  - BOOK
T1  - The mayflies, or Ephemeroptera, of Illinois
T2  - Illinois Natural History Survey Division bulletin;
A1  - Burks, B. D. 1909-
LA  - English
PP  - Los Angeles
PB  - Entomological Reprint Specialists
YR  - 1975
UL  - http://discoverylib.upm.edu.my/discovery/Record/28580
OP  - 216
NO  - Includes index
NO  - Reprint, with a new pref., of the 1953 ed. published by the Illinois Natural History Survey Division, Urbana, which was issued as v. 26, article 1 of its Bulletin
CN  - QL505.2 U6B959
SN  - 0911836063
KW  - Insects : Illinois.
KW  - May-flies : Illinois.
ER  -