Citazione Stile APA (7a Edizione)

Steffens, L. (1938). The letters of Lincoln Steffens. Harcourt, Brace and company.

Citazione stile Chigago Style (17a edizione)

Steffens, Lincoln. The Letters of Lincoln Steffens. New York: Harcourt, Brace and company, 1938.

Citatione MLA (8a ed.)

Steffens, Lincoln. The Letters of Lincoln Steffens. Harcourt, Brace and company, 1938.