Invisible Barriers
| First published | 1958 |
|---|---|
| Publisher | Avalon Books |
| Format | Hardcover |
| Type | Novel |
| Cover art | Ric Binkley |
| Pages | 223 |
| Price | $2.75 |
- © 1958 No other statement of publication, edition or printing
- No statement of printing on copyright page.
- "Jacket design by Ric Binkley" on front flap, jacket is also signed
- "This edition is known to exist in at least two states: one with the t.p. and p. 7 transposed at the press and the other with the error corrected" from the OCLC record linked below
- PV1, PV2 and PV3 copies have the corrected pages
No ISBN on record — searching by title and author.