1
by Purcell, Theodore Vincent, 1911-
Published 1971
“...Wharton School. Industrial Research Unit....”Published 1971
Book
2
3
4
by Dewhurst, J. Frederic (James Frederic), 1895-1967.
Published 1932
“...Wharton School. Industrial Research Unit....”Published 1932
Book
5
6
7
by Northrup, Herbert R. (Herbert Roof), 1918-2007.
Published 1968
“...Wharton School. Industrial Research Unit....”Published 1968
Book
8
9
10
11