| Krug, Paul G.; ISMA Directory; 1987 | ISMA Directory | 1987-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1988 | ISMA Directory | 1988-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1989 | ISMA Directory | 1989-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1990 | ISMA Directory | 1990-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1991 | ISMA Directory | 1991-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1992 | ISMA Directory | 1992-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1993 | ISMA Directory | 1993-00-00 | | Retired |
| Krug, Paul G.; ISMA Directory; 1994 | ISMA Directory | 1994-00-00 | | Retired |