APA (7th ed.) Citation

Krutch, J. W., & Landacre, P. (2009). The great chain of life (1st University of Iowa Press ed.). University of Iowa Press.

Chicago Style (17th ed.) Citation

Krutch, Joseph Wood, and Paul Landacre. The Great Chain of Life. 1st University of Iowa Press ed. Iowa City: University of Iowa Press, 2009.

MLA (9th ed.) Citation

Krutch, Joseph Wood, and Paul Landacre. The Great Chain of Life. 1st University of Iowa Press ed. University of Iowa Press, 2009.