An in-situ permeable reactive barrier for the treatment of hexavalent chromium and trichloroethylene in ground water /

"Project Officer, Robert W. Puls, Subsurface Protection and Remediation Division."

The Roman Wall : an historical and topographical description of the barrier of the lower isthmus extending from the Tyne to the Solway deduced from numerous personal surveys /

Interleaved with many insertions and manuscript notes ; partly mutilated.

Vehicle barrier impact testing with Hybrid III dummies in a 1987 Toyota Camry 4-door sedan. Test report.

Mode of access: Internet.

Vehicle barrier impact testing with Hybrid III dummies in a 1987 Chrysler Lebaron 2-door coupe. Test report.

Mode of access: Internet.

Final report of frontal barrier impacts of a 1985 Ford Escort 3-door hatchback in support of CRASH III damage algorithm reformation.

Mode of access: Internet.

Trade barrier research bulletin series ...

Reproduced from typewritten copy

Report to Congress, Coastal Barrier Resources System : recommendations for additions to or deletions from the Coastal Barrier Resources System /

Maps have title: Report to Congress on the Coastal Barrier Resources System.

The hand-book to the Roman wall: a guide to tourists traversing the barrier of the lower isthmus.

Mode of access: Internet.

The Pfahlgraben : an essay towards a description of the barrier of the Roman Empire between the Danube and the Rhine /

Reprinted from Archæologia Æliana.