Kartawich, Laura M. and Kenneth W. McCravy
A Survey of the Robber Flies (Diptera: Asilidae) of Ira and Reatha T. Post Wildlife Sanctuary, McDonough County, Illinois USA
PDF: 103-04MS2910-print
[02-16] The Relation of the Sciences to Each Other
The Relation of the Sciences to Each Other Author: Crew, Henry