APA (7th ed.) Citation

Sobolev, D. (1972). Planet of Riddles. Mir Publication.

Chicago Style (17th ed.) Citation

Sobolev, David. Planet of Riddles. Moscow: Mir Publication, 1972.

MLA (9th ed.) Citation

Sobolev, David. Planet of Riddles. Mir Publication, 1972.

Warning: These citations may not always be 100% accurate.