Cita APA (7th ed.)

(1947). Spearhead: 10 years' experimental writing in America. s.n.

Cita Chicago (17th ed.)

Spearhead: 10 Years' Experimental Writing in America. New York: s.n, 1947.

Cita MLA (9th ed.)

Spearhead: 10 Years' Experimental Writing in America. s.n, 1947.