Lellinger, D. B., & Peck, J. H. (1983). Ferns and Fern Allies of the Driftless Area of Illinois, Iowa, Minnesota and Wisconsin. Zenodo.
Chicago Style (17th ed.) CitationLellinger, David Bruce, and James H. Peck. Ferns and Fern Allies of the Driftless Area of Illinois, Iowa, Minnesota and Wisconsin. Zenodo, 1983.
MLA (9th ed.) CitationLellinger, David Bruce, and James H. Peck. Ferns and Fern Allies of the Driftless Area of Illinois, Iowa, Minnesota and Wisconsin. Zenodo, 1983.
Warning: These citations may not always be 100% accurate.