Waterfowl of Illinois :
status and management, W-110-R-1, annual federal aid performance report, 1 July 1990 through 30 June 1991 /
by Stephen P. Havera.
APA Citation
Havera, S. P., Anderson, W. L., Illinois. Natural History Survey Division. (101991). Waterfowl of Illinois: status and management, W-110-R-1, annual federal aid performance report, 1 July 1990 through 30 June 1991. Havana [Ill.]: Illinois Natural History Survey.
MLA Citation
Havera, Stephen P, William L Anderson, and Illinois. Natural History Survey Division. Waterfowl of Illinois: Status And Management, W-110-R-1, Annual Federal Aid Performance Report, 1 July 1990 Through 30 June 1991. Havana [Ill.]: Illinois Natural History Survey, 101991.
Warning: These citations may not always be complete (especially for serials).