Cita APA (7th ed.)

Cole, J. Y., & Highsmith, C. M. (2008). On these walls: Inscriptions & quotations in the Library of Congress. Library of Congress Scala Publishers.

Cita Chicago (17th ed.)

Cole, John Young, i Carol M. Highsmith. On These Walls: Inscriptions & Quotations in the Library of Congress. Washington, DC, London: Library of Congress Scala Publishers, 2008.

Cita MLA (9th ed.)

Cole, John Young, i Carol M. Highsmith. On These Walls: Inscriptions & Quotations in the Library of Congress. Library of Congress Scala Publishers, 2008.