| Verfasser | Häufigkeit |
| Blackadar, Robert Gordon 1928- |
21 |
| Blackadar, Bruce 1948- |
6 |
| Blackadar, Alfred K. |
3 |
| Biggs, J. M. |
2 |
| Blackadar, A. K. |
2 |
| Cramer, H. E. |
2 |
| Vincent, G. S. |
2 |
| Blackadar, Alfred K. 1920- |
1 |
| Blackadar, Bruce |
1 |
| Blackadar, Robert G. |
1 |
| Blackadar, Thomas |
1 |
| Buajitti, Kajit |
1 |
| Kolodney, David |
1 |
| Lemon, Roy R. |
1 |
| Miller, James E. |
1 |
| Newstein, Herman |
1 |
| Ooyama, Katsuyuki 1929- |
1 |
| Vincent, L. E. |
1 |