APA (7th ed.) Citation

Chandler, C. (1979). Hello, I must be going: Groucho and his friends. Penguin Books.

Chicago Style (17th ed.) Citation

Chandler, Charlotte. Hello, I Must Be Going: Groucho and His Friends. Harmondsworth, Eng. ; New York: Penguin Books, 1979.

MLA (9th ed.) Citation

Chandler, Charlotte. Hello, I Must Be Going: Groucho and His Friends. Penguin Books, 1979.