Environmental characteristics and water quality of hydrologic benchmark network stations in the midwestern United States, 1963-95 /

Mode of access: Internet.

Abstracts of recent published material on soil and water conservation.

Description based on: No. 4 (Nov. 1950); title from cover.

Manual of soil and water conservation engineering,

Mode of access: Internet.

Identities: Of light and heat, of caloric and electricity ...

Mode of access: Internet.