Hoyle, F., & Holey, G. (1963). Fifth planet. Penguin Books.
Tohutoru Kātū Chicago (17th ed.)Hoyle, Fred, me Geoffrey Holey. Fifth Planet. Harmondsworth: Penguin Books, 1963.
Tohutoro MLA (9th ed.)Hoyle, Fred, me Geoffrey Holey. Fifth Planet. Penguin Books, 1963.
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