APA (7th ed.) Citation

Whitman, W., Landauer, G., & Reisiger, H. (1985). Grashalme. Diogenes.

Chicago Style (17th ed.) Citation

Whitman, Walt, Gustav Landauer, and Hans Reisiger. Grashalme. Zurich: Diogenes, 1985.

MLA (8th ed.) Citation

Whitman, Walt, et al. Grashalme. Diogenes, 1985.