Annual report - Geological and Natural History Survey of Minnesota.

Place of publication varies.

Bulletin of the Natural History Survey

Mode of access: Internet.

Method of destroying grasshoppers /

Issued originally as Entomological series. Circular 3, revised.

The army-worm.

Mode of access: Internet.

The more important insecticides and repellents /

Issued originally without number, by Entomological Survey Division.

Habits and control of termites.

Mode of access: Internet.

The corn root-aphis /

Issued originally as Entomological series. Circular 4.

Insect pest management guide.

Mode of access: Internet.

Biological notes.

At head of title, no. : State of Illinois ... Dept. of registration and education ...

Acute toxicity of ingested zinc shot to game-farm mallards /

Includes bibliographical references (p. 32-35).

Acute toxicity test of zinc shot in game-farm mallards : final report. /

Cover title.

An assessment of the water quality of the Rock River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

An assessment of the water quality of the Cache River Basin derived from a biological investigation /

"Prepared for the Illinois Environmental Protection Agency."

Annual report /

Description based on: 1989-90; title from cover.

Annual summary of biological investigations at Carlyle Lake.

"Annual report submitted to the U.S. Army Corps of Engineers, St. Louis District, St. Louis, Missouri."