NMLP P-045808 · True-first precedence · minted 2026-07-19
Understanding Media: The Extensions of Man
Marshall McLuhan · McGraw-Hill Book Company (New York) · 1964
US true first: McGraw-Hill, New York, 1964. A London edition (Routledge & Kegan Paul, 1964) follows the same year and is also collected, but the McGraw-Hill printing is the first. Much-later MIT Press editions are reprints, not first-edition issues. Census note is correct.
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New Mexico Literacy Project — True-first precedence NMLP P-045808 for "Understanding Media: The Extensions of Man" by Marshall McLuhan (https://newmexicoliteracyproject.org/id/point/p-045808, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).