Noneuclidean geometry /
Meschkowski, Herbert.
Noneuclidean geometry / Herbert Meschkowski ; translated by A. Shenitzer. - 2nd ed. - New York : Academic Press, 1964. - viii, 104 p. : ill. ; 21 cm.
Geometry, Non--Euclidean.
Noneuclidean geometry / Herbert Meschkowski ; translated by A. Shenitzer. - 2nd ed. - New York : Academic Press, 1964. - viii, 104 p. : ill. ; 21 cm.
Geometry, Non--Euclidean.