Cita APA (7a ed.)

Mohlenbrock, R. H., & Ladd, D. M. (1978). Distribution of Illinois Vascular Plants. Southern Illinois University Press.

Cita Chicago Style (17a ed.)

Mohlenbrock, Robert H., y Douglas M. Ladd. Distribution of Illinois Vascular Plants. Carbondale: Southern Illinois University Press, 1978.

Cita MLA (8a ed.)

Mohlenbrock, Robert H., y Douglas M. Ladd. Distribution of Illinois Vascular Plants. Southern Illinois University Press, 1978.