- Robert C. O'Brien. Z for Zachariah (Kindle version). New York City: Atheneum Books for Young Readers , 2021 (originally published in 1974).
- O'Brien, Robert C. Z for Zachariah (Kindle Edition). New York: Atheneum Books for Young Readers, 2021 (originally published in 1974).
- "O'Brien, Robert C." The Encyclopedia of Science Fiction. 11/07/2022. <https://sf-encyclopedia.com/entry/obrien_robert_c>.
- François Diaz-Maurin. "NOWHERE TO HIDE How a nuclear war would kill you — and almost...
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