Nicholson, J., Valverde-Barrantes, O., & Burns, J. (2015). Rhododendron Roots. https://oaks.kent.edu/node/5157
Nicholson, Jaynell, Oscar Valverde-Barrantes, and Jean Burns. 2015. “Rhododendron Roots”. https://oaks.kent.edu/node/5157.
Nicholson, J., O. Valverde-Barrantes, and J. Burns. Rhododendron Roots. 11 Mar. 2015, https://oaks.kent.edu/node/5157.