Cita APA (7a ed.)

Mutel, C. F. (1989). Fragile giants: A natural history of the Loess Hills. University of Iowa Press.

Cita Chicago Style (17a ed.)

Mutel, Cornelia Fleischer. Fragile Giants: A Natural History of the Loess Hills. Iowa City: University of Iowa Press, 1989.

Cita MLA (8a ed.)

Mutel, Cornelia Fleischer. Fragile Giants: A Natural History of the Loess Hills. University of Iowa Press, 1989.