Petersen, Joseph L., Darrell N. Ueckert, Charles A. Taylor, and Keith R. Shaffer. “Germination of Redberry Juniper (Juniperus Pinchotii) Seed in Western Texas”. Texas Journal of Agriculture and Natural Resources 18 (May 4, 2016): 28–30. Accessed September 24, 2021. https://txjanr.agintexas.org/index.php/txjanr/article/view/121.