| Koelbl, Alfred J.; ISMA Directory; 1957 | ISMA Directory | 1957-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1958 | ISMA Directory | 1958-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1959 | ISMA Directory | 1959-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1960 | ISMA Directory | 1960-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1961 | ISMA Directory | 1961-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1963 | ISMA Directory | 1963-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1964 | ISMA Directory | 1964-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1965 | ISMA Directory | 1965-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1966 | ISMA Directory | 1966-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1967 | ISMA Directory | 1967-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1971 | ISMA Directory | 1971-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1973 | ISMA Directory | 1973-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1976 | ISMA Directory | 1976-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1980 | ISMA Directory | 1980-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1985 | ISMA Directory | 1985-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1986 | ISMA Directory | 1986-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1987 | ISMA Directory | 1987-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1988 | ISMA Directory | 1988-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1989 | ISMA Directory | 1989-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1990 | ISMA Directory | 1990-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1991 | ISMA Directory | 1991-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1992 | ISMA Directory | 1992-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1993 | ISMA Directory | 1993-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1994 | ISMA Directory | 1994-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1995 | ISMA Directory | 1995-00-00 | | |
| Koelbl, Alfred J.; ISMA Directory; 1996 | ISMA Directory | 1996-00-00 | | |