APA

Ryan P. J., . (1986). Euclidean and non-Euclidean geometry. Cambridge [u.a.]: Cambridge Univ. Press.

Chicago

Ryan Patrick J, . 1986. Euclidean and non-Euclidean geometry. Cambridge [u.a.]: Cambridge Univ. Press.

Harvard

Ryan P. J., . (1986). Euclidean and non-Euclidean geometry. Cambridge [u.a.]: Cambridge Univ. Press.

MLA

Ryan Patrick J, . Euclidean and non-Euclidean geometry. Cambridge [u.a.]: Cambridge Univ. Press. 1986.