[069-21] The Emergence of the Periodical Cicada (Brood XXIII) in Illinois in 1976 (Homoptera: Cicadidae)
Kritsky, Gene and Ronald H. Meyer The Emergence of the Periodical Cicada (Brood XXIII) in Illinois in 1976 (Homoptera: Cicadidae) 069-21-print
[069-19] The Enicocephalidae (Hemiptera) in Illinois
Kritsky, Gene The Enicocephalidae (Hemiptera) in Illinois 069-19-print