APA (7th ed.) Citation

Shetler, S. G., & Skog, L. E. (1978). A provisional checklist of species for Flora North America (Rev.). Published for MAB/FNA by Missouri Botanical Garden.

Chicago Style (17th ed.) Citation

Shetler, Stanwyn G., and Laurence E. Skog. A Provisional Checklist of Species for Flora North America. Rev. [St. Louis]: Published for MAB/FNA by Missouri Botanical Garden, 1978.

MLA (9th ed.) Citation

Shetler, Stanwyn G., and Laurence E. Skog. A Provisional Checklist of Species for Flora North America. Rev. Published for MAB/FNA by Missouri Botanical Garden, 1978.