Citazione Stile APA (7a Edizione)

Leonard, I. E., & Leonard, I. E. (2014). Classical geometry: Euclidean, transformational, inversive, and projective. Wiley.

Citazione stile Chigago Style (17a edizione)

Leonard, I. E., e I. E. Leonard. Classical Geometry: Euclidean, Transformational, Inversive, and Projective. Hoboken, New Jersey: Wiley, 2014.

Citatione MLA (9a ed.)

Leonard, I. E., e I. E. Leonard. Classical Geometry: Euclidean, Transformational, Inversive, and Projective. Wiley, 2014.