APA (7th ed.) Citation
Unseld, S., Goethe, J. W. v., & Northcott, K. J. (2003). Goethe & the ginkgo: A tree & a poem. University of Chicago Press.
Chicago Style (17th ed.) Citation
Unseld, Siegfried, Johann Wolfgang von Goethe, and Kenneth J. Northcott. Goethe & the Ginkgo: A Tree & a Poem. Chicago: University of Chicago Press, 2003.
MLA (9th ed.) Citation
Unseld, Siegfried, et al. Goethe & the Ginkgo: A Tree & a Poem. University of Chicago Press, 2003.
Warning: These citations may not always be 100% accurate.