| Verfasser | Häufigkeit |
| Turnbull, Colin M. 1924-1994 |
41 |
| Turnbull, Michael |
17 |
| Turnbull, Constance Mary |
9 |
| Turnbull, Colin Macmillan |
7 |
| Turnbull, James |
7 |
| Solms, Mark 1961- |
6 |
| Turnbull, Oliver |
6 |
| Parry, Jennifer M. |
4 |
| Turnbull, Ann P. |
4 |
| Gibson, J R. |
3 |
| Lieverdink, Peter |
3 |
| Matotek, Dennis |
3 |
| McCune, Jeffrey |
3 |
| Murphy, John M. |
3 |
| Norbu, Thubten D. 1922-2008 |
3 |
| Swann, Brenda |
3 |
| Turnbull, Agnes S. 1888-1982 |
3 |
| Turnbull, Colin M. |
3 |
| Turnbull, H. Rutherford |
3 |
| Turnbull, Malcolm |
3 |