| Verfasser | Häufigkeit |
| Ryan, James G. |
5 |
| Gosling, Ryan 1980- |
4 |
| Mason, James 1909-1984 |
4 |
| Ryan, James A. |
4 |
| Ryan, Robert 1909-1973 |
4 |
| Cairns, John W. |
3 |
| Overholt, James L. |
3 |
| Pedersen, Vernon L. 1955- |
3 |
| Rincon, Jane B. |
3 |
| Ryan, Constance A. |
3 |
| Ryan, Robert |
3 |
| Sibley, Katherine A. S. 1961- |
3 |
| Agron, Dianna 1986- |
2 |
| Alwyn, William 1905-1985 |
2 |
| Amini, Hossein 1966- |
2 |
| Baffa, Christopher 1965- |
2 |
| Bel Geddes, Barbara 1922-2005 |
2 |
| Bender, Lon 1959- |
2 |
| Black, James |
2 |
| Bois, Curt 1901-1991 |
2 |