APA (7th ed.) Citation

Richardson, D. H. S. (1974). The vanishing lichens: Their history, biology, and importance. Hafner Press.

Chicago Style (17th ed.) Citation

Richardson, D. H. S. The Vanishing Lichens: Their History, Biology, and Importance. New York: Hafner Press, 1974.

MLA (9th ed.) Citation

Richardson, D. H. S. The Vanishing Lichens: Their History, Biology, and Importance. Hafner Press, 1974.