McDowell, C.H..
A Dictionary of Mathematics : Plane Trigonometry and Geometry / vol. 2 McDowell C.H.. - London : Mathematical Dictionaries, 1949. - 63 s.; 25 cm.
A Dictionary of Mathematics : Plane Trigonometry and Geometry / vol. 2 McDowell C.H.. - London : Mathematical Dictionaries, 1949. - 63 s.; 25 cm.