Liverworts and Hornworts of Southern Michigan, 233 pp. 1991. Ann Arbor
Liverworts and Hornworts of Southern Michigan, 233 pp. 1991. Ann Arborv. 106292–293
Ireland, Robert Root. 1992. [Book review] "Liverworts and Hornworts of Southern Michigan, 233 pp. 1991. Ann Arbor." Canad.Field-Naturalist, 106, 292–293.