Tohutoro APA (7th ed.)
Lyttleton, R. A. (1953). The Comets and their origin. University Press.
Tohutoru Kātū Chicago (17th ed.)
Lyttleton, R. A. The Comets and Their Origin. Cambridge: University Press, 1953.
Tohutoro MLA (9th ed.)
Lyttleton, R. A. The Comets and Their Origin. University Press, 1953.
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