L`Engle, Madeleine
A wind in the door / Madeleine L'Engle
Dell Publishing, 1973
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L`Engle, Madeleine
A swiftly tilting planet
Dell Publishing, 1978
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Wollheim, Donald A.
The portables novels of science
Viking Press, 1950
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Asimov, Isaac
The Rest of the robots / Isaac Asimov
Grafton Books, 1990.
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Science fiction : a historical anthology
edited by Eric S. Rabkin
Oxford University Press, 1983
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