APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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