Van Doren, Carl (1938). Benjamin Franklin. New York: The Viking Press. p. 159. Quoted text from May 1751 letter published in Gentleman's Magazine. Excerpt at «Franklin – The Scientist». Archivado desde el original el 30 de abril de 2001. Consultado el 24 de mayo de 2019.
Davis C, Engeln A, Johnson EL, et al. (December 2014). «Wilderness Medical Society practice guidelines for the prevention and treatment of lightning injuries: 2014 update». Wilderness & Environmental Medicine25 (4 Suppl): S86-95. PMID25498265. doi:10.1016/j.wem.2014.08.011.
Davis C, Engeln A, Johnson EL, et al. (December 2014). «Wilderness Medical Society practice guidelines for the prevention and treatment of lightning injuries: 2014 update». Wilderness & Environmental Medicine25 (4 Suppl): S86-95. PMID25498265. doi:10.1016/j.wem.2014.08.011.
Van Doren, Carl (1938). Benjamin Franklin. New York: The Viking Press. p. 159. Quoted text from May 1751 letter published in Gentleman's Magazine. Excerpt at «Franklin – The Scientist». Archivado desde el original el 30 de abril de 2001. Consultado el 24 de mayo de 2019.
Van Doren, Carl (1938). Benjamin Franklin. New York: The Viking Press. p. 159. Quoted text from May 1751 letter published in Gentleman's Magazine. Excerpt at «Franklin – The Scientist». Archivado desde el original el 30 de abril de 2001. Consultado el 24 de mayo de 2019.