Sitomer, Mindel frey50
Lines, segments, polygons Mindel & Harry Sitomer; Illustrated by Robert Quackenbush - New York Thomas Y. Crowell Company 1972 - 33 p.
0-690-49486-6
Geometry--Basic geometry
j516 Sit 25
Lines, segments, polygons Mindel & Harry Sitomer; Illustrated by Robert Quackenbush - New York Thomas Y. Crowell Company 1972 - 33 p.
0-690-49486-6
Geometry--Basic geometry
j516 Sit 25