APA (7th ed.) Citation

Semple, J. C., & Ringius, G. S. (1992). The goldenrods of Ontario: Solidago L. and Euthamia Nutt (Rev. ed.). Dept. of Biology, University of Waterloo.

Chicago Style (17th ed.) Citation

Semple, John C., and Gordon S. Ringius. The Goldenrods of Ontario: Solidago L. and Euthamia Nutt. Rev. ed. Waterloo, Ont.: Dept. of Biology, University of Waterloo, 1992.

MLA (9th ed.) Citation

Semple, John C., and Gordon S. Ringius. The Goldenrods of Ontario: Solidago L. and Euthamia Nutt. Rev. ed. Dept. of Biology, University of Waterloo, 1992.