| Verfasser | Häufigkeit |
| Safari, an O'Reilly Media Company |
13 |
| O'Reilly for Higher Education (Firm) |
6 |
| McGeorge, Donna |
3 |
| Belden, Charles 1904-1954 |
2 |
| Brent, George 1904-1979 |
2 |
| Chaplin, Ben |
2 |
| Clooney, George |
2 |
| Clooney, George 1961- |
2 |
| Curwood, James Oliver 1878-1927 |
2 |
| Cusack, John |
2 |
| Keighley, William 1889-1984 |
2 |
| Lenz, Mike |
2 |
| MacLane, Barton 1902-1969 |
2 |
| Malick, Terrence |
2 |
| Milliken, George A. 1943- |
2 |
| Milne, Peter 1896-1968 |
2 |
| Mount, George |
2 |
| Nolte, Nick |
2 |
| Penn, Sean |
2 |
| Reilly, John C. |
2 |