The Cambridge encyclopedia of life sciences
edited by Adrian Friday, David S. Ingram
Cambridge University Press, 1985
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Macmillan encyclopedia of sciences : Life on Earth
New York : Macmillan Library Reference, 1997,
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Crystal, David, 1941-, author
The Cambridge encyclopedia of language
Cambridge University Press, 1991
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Cambridge encyclopedia of China
New York Cambridge University Press 1991
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Crystal, David, 1941-, author
The Cambridge encyclopedia of language
Cambridge University Press, 1997
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