NMLP P-020089 · True-first precedence · minted 2026-07-04

The Sky-Liners

Louis L'Amour · Bantam Books · 1967

True first edition is the 1967 Bantam paperback original; there is no prior hardcover. By publication order it was the seventh Sackett title issued, though it falls later in the saga's internal chronology.

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New Mexico Literacy Project — True-first precedence NMLP P-020089 for "The Sky-Liners" by Louis L'Amour (https://newmexicoliteracyproject.org/id/point/p-020089, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).