Fun with circles :
a guide for parents /
Division of Home Economics.

APA Citation

United States. Division of Home Economics., United States. Department of Agriculture., United States. Federal Extension Service. (1966). Fun with circles: a guide for parents. Washington, DC: United States Government Printing Office.

MLA Citation

United States. Division of Home Economics, United States. Department of Agriculture, and United States. Federal Extension Service. Fun With Circles: a Guide for Parents. Washington, DC: United States Government Printing Office, 1966.