APA (7th ed.) Citation

Lenin, V. I. "Left wing" communism: An infantile disorder.

Chicago Style (17th ed.) Citation

Lenin, Vladimir I. "Left Wing" Communism: An Infantile Disorder.

MLA (8th ed.) Citation

Lenin, Vladimir I. "Left Wing" Communism: An Infantile Disorder.

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