Soil biology as related to land use practices : proceedings of the VII International Soil Zoology Colloquium of the International Society of Soil Science (ISSS) /

Item 473-B-1

Control of water pollution from cropland.

Issued jointly with the Office of Research and Development, EPA.

Technologies to benefit agriculture and wildlife : workshop proceedings.

Mode of access: Internet.

Agricultural pesticide use in coastal areas : a national summary /

"September 1992."

The nature, ecology, and control of Canada thistle

Bibliography: p. 31-32.