| Verfasser | Häufigkeit |
| Dos Passos, John 1896-1970 |
1 |
| Ekirch, Arthur Alphonse 1915-2000 |
1 |
| Friedman, Milton 1912-2006 |
1 |
| Hayek, Friedrich A. von 1899-1992 |
1 |
| Krutch, Joseph Wood 1893-1970 |
1 |
| Malin, James Claude |
1 |
| McGovern, William Montgomery 1897-1964 |
1 |
| Morley, Felix M. 1894-1982 |
1 |
| Schoeck, Helmut 1922-1993 |
1 |
| Weaver, Richard M. 1910-1963 |
1 |
| Williams, Roger J. 1893-1988 |
1 |
| Zirkle, Conway 1895-1972 |
1 |