Coastal ecological systems of the United States,

Mode of access: Internet.

Ecological systems approaches to aerobiology, II : development, demonstration and evaluation of models : proceedings of workshop/conference II, National Center for Atmospheric Research, Boulder, Colorado, 12-14 July 1972 /

At head of title: International Biological Program, United States National Committee, Aerobiology Program.

Proceedings of the Conference on Atmospheric Contamination in Confined Spaces, 30 March-1 April 1965.

Sponsored by the Aerospace Medical Research Laboratories.

Systems for rapid ranking of environmental pollutants.

Mode of access: Internet.

Maximum likelihood as an operational tool in socio-economic modeling: as outlined in a recent thesis of D. W. Peterson. Final report.

Transportation Department, Office of Systems Engineering, Washington, D.C.

Demographic and socio-cultural characteristics: Papago Indian Reservations, Arizona

Mode of access: Internet.