NMLP P-016452 · True-first precedence · minted 2026-07-04

The Day of the Triffids

John Wyndham · Michael Joseph (UK hardcover); Doubleday (US hardcover) · 1951

Caution: hardcover precedes the paperback. UK Michael Joseph is generally the senior first; the US Doubleday is the first US edition.

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New Mexico Literacy Project — True-first precedence NMLP P-016452 for "The Day of the Triffids" by John Wyndham (https://newmexicoliteracyproject.org/id/point/p-016452, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).