Toward the development of a county employment projection system for the State of Illinois : a report to the Illinois Environmental Protection Agency, Division of Air Pollution Control /

Cover title: Towards the development of a county employment projection system for the state of Illinois.

Digital-simulation and projection of head changes in the Potomac-Raritan-Magothy aquifer system, coastal plain, New Jersey /

"May 1980."

Operator's, organizational, direct support and general support maintenance manual : topographic support system camera, copying, lithographic, NSN 3610-01-174-4066, model no. P-E38.

"14 April 1986."