| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| 1973 |
|
Planets and Dimensions | Mirage Press | Nonfiction | 46 |
| 1973 |
|
Planets and Dimensions | Mirage Press | Nonfiction | 46 |
| 2009 |
|
Conversations with the Weird Tales Circle | Centipede Press | Nonfiction | 63 |