Piatt County surface water resources /

"January, 1968."

Perry County surface water resources /

"March, 1969."

Personnel directory.

Description based on: 1981.

Periodic report.

Title from caption.

Periodic report /

Title from cover.

Proceedings, Midwest Workshop on Bald Eagle Research and Management /

Includes bibliographies.

Randolph County surface water resources / by Donald M. Garver.

Mode of access: Internet.

Saline County surface water resources /

Includes bibliographical references (p. 48-49).

Seasonal report.

Issues determined by season: spring migration, breeding season, fall migration, winter season.

Schuyler County surface water resources /

"May, 1969."

Scott County surface water resources /

"January, 1970."

Sangamon County surface water resources.

Bibliography: p. 55-56.

Stark County surface water resources.

Bibliography: p. 40-41.

Trapper harvest survey.

Latest issue consulted: 1990/91.

Washington County surface water resources /

"February, 1970."