Dale Carpenter & Esther J. Swenson, illustrated by Robert Doremus.
The World of numbers. (Arithmetic, 3)
R655617. The World of numbers. By Dale Carpenter & Esther J. Swenson, illustrated by Robert Doremus. (Arithmetic, 3) © 3Jan50; A39449. Dale Carpenter & Esther J. Swenson (A); 28Jan77; R655617.
Dale Carpenter & Esther J. Swenson|A