| Skadberg, Arvid G.; ISMA Directory; 1961 | ISMA Directory | 1961-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1963 | ISMA Directory | 1963-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1964 | ISMA Directory | 1964-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1965 | ISMA Directory | 1965-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1966 | ISMA Directory | 1966-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1967 | ISMA Directory | 1967-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1971 | ISMA Directory | 1971-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1973 | ISMA Directory | 1973-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1976 | ISMA Directory | 1976-00-00 | | |
| Skadberg, Arvid G.; ISMA Directory; 1980 | ISMA Directory | 1980-00-00 | | |