3
Roy F. Douglass, “Silvical Characteristics of Redwood (Sequoia sempervirens [D. Don] Endl.),” US Forest Service Research Paper PSW-RP-28 (Berkeley, CA: Pacific Southwest Forest & Range Experiment Station Forest Service, 1966), 10, https://www.fs.usda.gov/treesearch/pubs/28694.
4
Richard Louv, Last Child in the Woods: Saving Our Children from Nature-Deficit Disorder (Chapel Hill, NC: Algonquin Books, 2005).
5
Charlotte Sophia Burne, The Handbook of Folklore (London, UK: Sidgwick & Jackson: 1914), 34, https://archive.org/details/cu31924009657283/page/n8.