A nationwide survey of truck and bus drivers. Final report.

Federal Highway Administration, Bureau of Motor Carrier Safety, Washington, D.C.

Time of travel and dispersion of solutes in a 36.4-mile reach of the North Platte River downstream from Casper, Wyoming /

Bibliography: p. 17.

Initial assessment of time of travel and mixing through Gulf Island Pond and the lower Androscoggin River, Maine /

Bibliography: p. 29.

The travel market,

Reproduces reports previously issued separately.

The travel market, 1955 ; a report to the Travel Research Association /

Mode of access: Internet.

The travel market, 1955, 1956, 1957,

Reproduces reports previously issued separately.

Nationwide personal transportation survey.

Vol. 4- have collective title: Nationwide personal transportation study.

Time of travel and dispersion study in the Androscoggin River Basin, Maine /

Bibliography: p. 47.