| Title: | Horizon |
| Title note: | American Heritage publication, 1958-1989 |
| More information: | Wikipedia article; Wikidata |
| First issue: | September 1958 (v. 1 no. 1) |
| First renewed issue: | September 1958 (v. 1 no. 1); see CPRS |
| First renewed contribution in: | September 1958 (v. 1 no. 1); see CPRS |
| Page responsibility: | John Mark Ockerbloom (ockerblo (at) pobox (dot) upenn (dot) edu) |
| Acknowledgement: | Thanks to Nat Bender for copyright research on this title. |
| Last updated: | January 13, 2022 |
| Machine-readable format: | JSON |
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