Cita APA (7th ed.)

Welchons, A. M. (1944). Solid Geometry: A Self-Teaching Course. Ginn.

Cita Chicago (17th ed.)

Welchons, A. M. Solid Geometry: A Self-Teaching Course. Washington: Ginn, 1944.

Cita MLA (9th ed.)

Welchons, A. M. Solid Geometry: A Self-Teaching Course. Ginn, 1944.