Michigan Stadium crowd, UM Football, 1975 Purdue game

[beginning of 100,000 plus attendance streak]

Non-destructive testing : a literature search /

"November 1957."

Determination of the tire quality from non destructive inspection. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

Survey of non-destructive tire inspection techniques. Preliminary memorandum.

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