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

Mode of access: Internet.

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

Mode of access: Internet.

Guidelines for air quality maintenance planning and analysis.

Vol. 7: second ed., 1975.

Regulations establishing standards of identity, quality, purity and sanitation, and governing the labeling and advertising of wine in the state of California.

Mode of access: Internet.

Rules and classifications and standards of quality and purity for waters of New York State.

Mode of access: Internet.

Classifications and standards of quality and purity for fresh surface waters of the Chemung River drainage basin, except Newtown Creek drainage basin,

Mode of access: Internet.

Surface waters of Eastern Suffolk County; official classifications. [Classifications and standards of quality and purity assigned to fresh surface waters and tidal salt waters of eastern Suffolk County.

Cover title.