Ryan, P. J. (1986). Euclidean and non-euclidean geometry: An analytic approach. Univ. pr.
Chicagoスタイル(17版)引用形式Ryan, Patrick J. Euclidean and Non-euclidean Geometry: An Analytic Approach. Cambridge: Univ. pr, 1986.
MLA(9版)引用形式Ryan, Patrick J. Euclidean and Non-euclidean Geometry: An Analytic Approach. Univ. pr, 1986.
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