1

Geometry (teacher's ed.)by Floyd L. Downs; Edwin E. Moise

Year:
1968
Language:
english
File:
PDF, 589 KB
english, 1968
3

Principles and Patterns of Numeration Systemsby Allene Archer

Year:
1965
Language:
english
File:
PDF, 216 KB
english, 1965
4

Modern Geometryby Eugene Nichols; William Palmer; John F. Schacht

Year:
1970
Language:
english
File:
PDF, 487 KB
english, 1970