A Concise geometrical conics
Durell, Clement V.
A Concise geometrical conics [Text] Durell, Clement V. - 1961 - xvi,99 p. illus., 19 cm.
Geometry
516.2 / DUR
A Concise geometrical conics [Text] Durell, Clement V. - 1961 - xvi,99 p. illus., 19 cm.
Geometry
516.2 / DUR