APA (7th ed.) Citation

Helgeson, E. (1998). An exercise of the intellect (1. publ.). Minerva Press.

Chicago Style (17th ed.) Citation

Helgeson, Edna. An Exercise of the Intellect. 1. publ. Montreux [u.a.]: Minerva Press, 1998.

MLA (9th ed.) Citation

Helgeson, Edna. An Exercise of the Intellect. 1. publ. Minerva Press, 1998.