The Functions of Sleep.
By Ernest L. Hartmann. Pp. ix+198. (Yale University: New Haven and London, January 1974.) £3.50 cloth; £1.25 paper.
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CRISP, A. The nature of sleep. Nature 249, 194 (1974). https://doi.org/10.1038/249194a0
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DOI: https://doi.org/10.1038/249194a0