APA (7th ed.) Citation

Eucken, R., Hough, W. S., & Gibson, W. R. B. (1909). The problem of human life as viewed by the great thinkers from Plato to the present time. C. Scribner's.

Chicago Style (17th ed.) Citation

Eucken, Rudolf, Williston Samuel Hough, and William Ralph Boyce Gibson. The Problem of Human Life as Viewed by the Great Thinkers from Plato to the Present Time. New York: C. Scribner's, 1909.

MLA (9th ed.) Citation

Eucken, Rudolf, et al. The Problem of Human Life as Viewed by the Great Thinkers from Plato to the Present Time. C. Scribner's, 1909.