Roland L. Porter
4 works in English-language magazines
| Date | Page | Type | Title | Magazine |
|---|---|---|---|---|
| July 1974 | 175|175.2 | Essay | Letter (Analog, July 1974) | Analog Science Fiction/Science Fact, July 1974 |
| March 1987 | 190|190.2 | Essay | Letter (Analog, March 1987) | Analog Science Fiction/Science Fact, March 1987 |
| April 1988 | 191|191.1 | Essay | Letter (Analog, April 1988) | Analog Science Fiction/Science Fact, April 1988 |
| December 1990 | 187|187.1 | Essay | Letter (Analog, December 1990) | Analog Science Fiction and Fact, December 1990 |