Dyfyniad APA

Perelman, Y. (1958). Astronomy for entertainment. Foreign Languages Pub. House.

Dyfyniad Arddull Chicago

Perelman, Y. Astronomy for Entertainment. Moscow: Foreign Languages Pub. House, 1958.

Dyfyniad MLA

Perelman, Y. Astronomy for Entertainment. Foreign Languages Pub. House, 1958.

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