APA (7th ed.) Citation

Leggett, R., & Kirchoff, B. K. (2011). Image use in field guides and identification keys: Review and recommendations. AoB plants, 2011, plr004. https://doi.org/10.1093/aobpla/plr004

Chicago Style (17th ed.) Citation

Leggett, Roxanne, and Bruce K. Kirchoff. "Image Use in Field Guides and Identification Keys: Review and Recommendations." AoB Plants 2011 (2011): plr004. https://doi.org/10.1093/aobpla/plr004.

MLA (9th ed.) Citation

Leggett, Roxanne, and Bruce K. Kirchoff. "Image Use in Field Guides and Identification Keys: Review and Recommendations." AoB Plants, vol. 2011, 2011, p. plr004, https://doi.org/10.1093/aobpla/plr004.