APA (7th ed.) Citation

Wells, D. (1991). The Penguin dictionary of curious and interesting geometry (1. publ., [Nachdr.].). Penguin Books.

Chicago Style (17th ed.) Citation

Wells, David. The Penguin Dictionary of Curious and Interesting Geometry. 1. publ., [Nachdr.]. London [u.a.]: Penguin Books, 1991.

MLA (9th ed.) Citation

Wells, David. The Penguin Dictionary of Curious and Interesting Geometry. 1. publ., [Nachdr.]. Penguin Books, 1991.