John Jeffrey (botanico)
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Bibliografia[modifica | modifica wikitesto]
- Coville, Frederick V., The Itinerary of John Jeffrey, An Early Botanical Explorer of Western North America, in Proceedings of the Biological Society of Washington, vol. 11, 1897, pp. 57-60.
- Harvey, A. G., John Jeffrey: Botanical Explorer, in The Siskiyou Pioneer in Folklore, Fact and Fiction and Yearbook, Siskiyou County Historical Society. 1947. pp. 17-19, 39.
- Woods, P. and Woods, J., The Oregon Expedition 1850-1854: John Jeffrey and his Conifers, in Acta Horticulturae, vol. 615, IV International Conifer Conference.
- Lange, E.F., John Jeffrey and the Oregon Botanical Expedition, in Oregon Historical Quarterly, vol. 69, 1967, pp. 111-24.
- Lang F.A., John Jeffrey in the Wild West: Speculations on his Life and Times (PDF), in Kalmiopsis, vol. 13, 2006, pp. 1-12.