1. Cutworms, army worms and grasshoppers;Washburn;Univ. Minnesota Agr. Expt. Sta. Bull.,1911
2. Riegert P. W. 1948. The field biology of Camnula pellucida (Scudd.). M.Sc. thesis. Montana State College.
3. NOTE ON THE DISAPPEARANCE OF DEAD GRASSHOPPERS FROM SITES OF APPLICATION OF CONTROL MEASURES
4. Devices for marking insects;Post;North Dakota Agr. Expt. Sta. Bimonthly Bull.,1950
5. Grasshopper migration in North Dakota;Munro;North Dakota Agr. Expt. Sta. Bimonthly Bull.,1938