NMLP P-026935 · Point of issue · minted 2026-07-04

Mrs. Frisby and the Rats of NIMH

Robert C. O'Brien (illus. Zena Bernstein) · Atheneum · 1971

First edition 1971, Atheneum (New York), stated 'First Edition' on the copyright page with no later-printing line

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New Mexico Literacy Project — Point of issue NMLP P-026935 for "Mrs. Frisby and the Rats of NIMH" by Robert C. O'Brien (illus. Zena Bernstein) (https://newmexicoliteracyproject.org/id/point/p-026935, CC BY 4.0, dataset DOI 10.5281/zenodo.21184548).