Deismireacht APA

Sagan, C., & Leonard, J. N. (1967). <Planets>. Time life books.

Chicago Edition Citation

Sagan, Carl, and Jonathan Norton Leonard. <Planets>. New York: Time life books, 1967.

Deismireacht MLA

Sagan, Carl, and Jonathan Norton Leonard. <Planets>. Time life books, 1967.

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