Cita APA (7th ed.)

Schmidgen, H., & Schott, N. F. (2014). The Helmholtz curves: Tracing lost time (First edition.). Fordham University Press.

Cita Chicago (17th ed.)

Schmidgen, Henning, i Nils F. Schott. The Helmholtz Curves: Tracing Lost Time. First edition. New York: Fordham University Press, 2014.

Cita MLA (9th ed.)

Schmidgen, Henning, i Nils F. Schott. The Helmholtz Curves: Tracing Lost Time. First edition. Fordham University Press, 2014.