Frank N. Egerton, [39:AHOTES2.0.CO;2 A History of the Ecological Sciences, Part 27: Naturalists Explore Russia and the North Pacific During the 1700s], in Bulletin of the Ecological Society of America, vol. 89, n. 1, 2008, pp. 39–60, DOI:10.1890/0012-9623(2008)89[39:AHOTES]2.0.CO;2.
Frank N. Egerton, [39:AHOTES2.0.CO;2 A History of the Ecological Sciences, Part 27: Naturalists Explore Russia and the North Pacific During the 1700s], in Bulletin of the Ecological Society of America, vol. 89, n. 1, 2008, pp. 39–60, DOI:10.1890/0012-9623(2008)89[39:AHOTES]2.0.CO;2.