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.

Guatemala, development of the Institute of Agricultural Science and Technology (ICTA) and its impact on agricultural research and farm productivity /

"PN-AAJ-178"--Cover.

More needs to be done to reduce the number and adverse impact of illegal aliens in the United States, Immigration and Naturalization Service, Department of Justice;

"B-125051."

Shlaudeman nomination : hearings before the Committee on Foreign Relations, United States Senate, Ninety-fourth Congress, second session, on the nomination of Harry W. Shlaudeman, of California, a Foreign Service officer of class 1, to be Assistant Secretary of State for Inter-American Affairs, May 25, and June 10 and 11, 1976.

Includes bibliographical references.

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

Includes bibliographical references.

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

Mode of access: Internet.

The United States Environmental Protection Agency announces the availability of 1996 grants for research on endocrine disruptors, role of interindividual variation in human susceptibility to cancer, risk-based decisions for contaminated sediments.

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.

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

Tables.