Coastal wetlands of the United States : an accounting of a valuable national resource /

Mode of access: Internet.

USARP: United States Antarctic Research Program, National Science Foundation.

Mode of access: Internet.

Southeastern evergreen and oak-pine region ; inventory of natural areas and sites recommended as potential natural landmarks /

Mode of access: Internet.

The impact of human use upon the Chisos Basin and adjacent lands

Mode of access: Internet.

Vegetation and ecological processes on Shackleford Bank, North Carolina.

Mode of access: Internet.

Science indicators, 1972; report of the National Science Board.

Fifth annual report of the National Science Board.

Science indicators, 1976 : report of the National Science Board.

"Ninth annual report of the National Science Board."

Natural resources report.

Each no. has also a distinctive title.

Terrestrial microcosms and environmental chemistry : the proceedings of two colloquia, held June 13-14, 1977 at Oregon State University, Corvallis, Oregon, as a part of the Symposium on Terrestrial Microcosms and Environmental Chemistry /

Mode of access: Internet.

National Communications System : thirty years of progress.

Shipping list no.: 93-0509-P.

Department of Housing and Urban Development : accompanying report of the National Performance Review /

S/N 040-000-00609-5 (GPO)

Explorers and settlers; historic places commemorating the early exploration and settlement of the United States.

Includes bibliographies.

Colonials and patriots; historic places commemorating our forebears, 1700-1783,

Bibliography: p. 241-242. Bibliographical references included in "Notes" (p. 245-253)

George Rogers Clark and the winning of the old Northwest /

Cover illustration by Mark English.

Ecological studies of the Sunken Forest, Fire Island National Seashore, New York /

Mode of access: Internet.