Author
Chamber of Commerce of Greater Philadelphia
2
Penjerdel (Corporation)
2
Burgess, George S.,
1
Carnegie Institution of Washington. Department of Economics and Sociology
1
Cremer, Henry
1
Ellis, Herbert Lee,
1
Hasse, Adelaide R. 1868-1953
1
Hulse, Edward Pierce,
1
Irwin, Leonard Bertram, 1904-
1
Levitt, James H., 1940-
1
Miller, Jacob Welsh, 1800-1862
1
New Jersey Bureau of Statistics of Labor and Industry
1
New Jersey Historical Commission
1
New Jersey Historical Society
1
New Jersey State Chamber of Commerce
1
Parsons, Floyd William, 1880-
1
Patt, Ruth Marcus
1