Some extensions of the work of Pappus and Steiner on tangent circles /
by J.H. Weaver.

APA Citation

Weaver, J. Henry. (1920). Some extensions of the work of Pappus and Steiner on tangent circles. Lancaster, Pa.: Press of the New Era Printing Company.

MLA Citation

Weaver, James Henry, 1883-. Some Extensions of the Work of Pappus And Steiner On Tangent Circles. Lancaster, Pa.: Press of the New Era Printing Company, 1920.

Warning: These citations may not always be complete (especially for serials).