Computer modeling of transportation-generated air pollution--a state-of-the-art survey. Final report.

Transportation Department, Office of the Assistant Secretary for Systems Development and Technology, Washington, D.C.

IBM Corporate Computer Center, Sterling Forest, New York, 1970-1972

[Conceptual Sketches], untitled. Ink sketches on tracing paper, initialed, 12 x 25 1/2 inches [from photographic copy by Lance Burgharrdt]

IBM Corporate Computer Center, Sterling Forest, New York, 1970-1972

[Conceptual Sketches], untitled. Black and brown ink sketches on tracing paper, 12 x 23 3/4 inches [from photographic copy by Lance Burgharrdt]

IBM Corporate Computer Center, Sterling Forest, New York, 1970-1972

[Conceptual Sketches], untitled. Brown ink sketches on tracing paper, initialed, 12x26 inches [from photographic copy by Lance Burgharrdt]