APA (7th ed.) Citation

Efremov, I. A. The land of foam. Foreign Languages Pub. House.

Chicago Style (17th ed.) Citation

Efremov, Ivan Antonovich. The Land of Foam. Moscow: Foreign Languages Pub. House.

MLA (9th ed.) Citation

Efremov, Ivan Antonovich. The Land of Foam. Foreign Languages Pub. House.

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