APA (7th ed.) Citation

Shakespeare, W. (1968). King Richard the third (1. publ.). Penguin Books.

Chicago Style (17th ed.) Citation

Shakespeare, William. King Richard the Third. 1. publ. Harmondsworth, Middlesex: Penguin Books, 1968.

MLA (9th ed.) Citation

Shakespeare, William. King Richard the Third. 1. publ. Penguin Books, 1968.

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