Cita APA (7th ed.)

International Correspondence Schools. (1913). Geometrical drawing, architectural drawing. International Correspondence Schools.

Cita Chicago (17th ed.)

International Correspondence Schools. Geometrical Drawing, Architectural Drawing. London: International Correspondence Schools, 1913.

Cita MLA (8th ed.)

International Correspondence Schools. Geometrical Drawing, Architectural Drawing. International Correspondence Schools, 1913.