Deismireacht APA

M.Walker Robert, & Asimov Isaac. (1966). The world around you. New York: Lancer Books.

Trích dẫn kiểu Chicago

M.Walker Robert, và Asimov Isaac. The World Around You. New York: Lancer Books, 1966.

Deismireacht MLA

M.Walker Robert, và Asimov Isaac. The World Around You. New York: Lancer Books, 1966.

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