APA (7th ed.) Citation

Alexander, C. H. O. (1974). The Penguin book of chess positions ([1st published, reprinted].). Penguin Books.

Chicago Style (17th ed.) Citation

Alexander, C. H. O'D. The Penguin Book of Chess Positions. [1st published, reprinted]. Harmondsworth: Penguin Books, 1974.

MLA (9th ed.) Citation

Alexander, C. H. O'D. The Penguin Book of Chess Positions. [1st published, reprinted]. Penguin Books, 1974.