Comparative toxicity of sewage-effluent disinfection to freshwater aquatic life /

Mode of access: Internet.

Information programs affect attitudes toward sewage sludge use in agriculture /

Mode of access: Internet.

Irrigation by refractometer

Mode of access: Internet.

Use of water in irrigation,

Mode of access: Internet.

Facts about the nose and nasal irrigation /

Mode of access: Internet.

Essentials of irrigation and cultivation of orchards /

Mode of access: Internet.

Drainage channel and waterway; a history of the effort to secure an effective and harmless method for the disposal of the sewage of the city of Chicago, and to create a navigable channel between Lake Michigan and the Missippi River,

Mode of access: Internet.

To allow producers to devote acreage conservation reserve acreage to water storage for irrigation [microform] : joint hearing before the Subcommittee on Cotton, Rice, and Sugar and the Subcommittee on Wheat, Soybeans, and Feed Grains of the Committee on Agriculture, House of Representatives, One Hundredth Congress, second session, on H.R. 5103, October 6, 1988.

"Serial no. 100-112."

Colonia Water and Sewage Service Act [microform] : hearing before the Subcommittee on Conservation, Credit, and Rural Development of the Committee on Agriculture, House of Representatives, One Hundredth Congress, second session, on H.R.3524, September 22, 1988.

"Serial no. 100-114."

Managing hazardous waste and sewage sludge [microform] : hearing before the Subcommittee on Transportation, Tourism, and Hazardous Materials of the Committee on Energy and Commerce, House of Representatives, One Hundredth Congress, first session, December 7, 1987.

"Serial no. 100-163."

Irrigation wells and well drilling /

Mode of access: Internet.

Irrigation pumps : their selection and use /

Mode of access: Internet.

Irrigation on steep land /

Mode of access: Internet.

Irrigation by sprinkling /

Mode of access: Internet.

Irrigation efficiency : a bibliography.

Mode of access: Internet.