Cita APA

Sumner, G. L. (1949). The toastmaster' s guide: Secrets to success at the speakers' table. New York: Blue Ribbon Books.

Citación estilo Chicago

Sumner, G. Lynn. The Toastmaster' S Guide: Secrets to Success At the Speakers' Table. New York: Blue Ribbon Books, 1949.

Cita MLA

Sumner, G. Lynn. The Toastmaster' S Guide: Secrets to Success At the Speakers' Table. New York: Blue Ribbon Books, 1949.