Mohlenbrock, R. H., & Voigt, J. W. (1974). A flora of southern Illinois. Carbondale: Southern Illinois University Press.
Chicago Style CitationMohlenbrock, Robert H., and John W. Voigt. A Flora of Southern Illinois. Carbondale: Southern Illinois University Press, 1974.
MLA CitationMohlenbrock, Robert H., and John W. Voigt. A Flora of Southern Illinois. Carbondale: Southern Illinois University Press, 1974.
Warning: These citations may not always be 100% accurate.