United States : a growing problem for law enforcement /

Title on t.p. verso: Illegal immigration to the United States, a growing problem for law enforcement.

Indexes of agricultural production for the Western Hemisphere, excluding the United States : rev. 1958 through 1966, preliminary 1967.

Mode of access: Internet.

Fishery resources of the United States of America,

Mode of access: Internet.

Foreign agricultural trade of the United States.

Mode of access: Internet.

Water quality indices : a survey of indices used in the United States /

Includes bibliographical references.

Radiofrequency radiation levels and population exposure in urban areas of the Eastern United States /

Issued May 1978.

Evaluation of selective erosion control techniques : Piedmont region of S.E. United States /

Mode of access: Internet.

Use of solar energy to heat anaerobic digesters : part I, technical and economic feasibility study : part II, economic feasibility throughout the United States /

Mode of access: Internet.

Impacts of sediment and nutrients on biota in surface waters of the United States /

"Grant no. R804868020."

Agricultural trade between Asia/Near East countries and the United States, 1962-86 /

Mode of access: Internet.

Dietary intake source data, United States, 1971-74 /

Tables.

Fertility tables for birth cohorts by color : United States, 1917-73 /

Mode of access: Internet.

Nutrition monitoring in the United States : an update report on nutrition monitoring /

Mode of access: Internet.

Delayed birth registration practices : vital registration areas of the United States.

Item 508.

Characteristics of pharmacists, United States /

Mode of access: Internet.