A non-linear dynamic model for primates. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

The human equation in aircraft accidents; an analysis of 758 fatal accidents charged to "pilot error" which occurred in non-air carrier flying during the year 1948.

Mode of access: Internet.

The effects of white and non-white population changes in the central city, Grand Rapids, Michigan 1950-1960 : a report to the Grand Rapids Human Relations Commission /

"April 1961"