APA-ийн эшлэл(7 дахь хэвлэлт)

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

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

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

MLA -ийн эшлэл (9 дэх хэвлэлт)

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