@misc{Sargent_Charles_Sprague_(1841–1927)_Manual_cop.,
 author={Sargent, Charles Sprague (1841–1927)},
 editor={Faxon, Charles Edward (1846–1918). Il.},
 editor={Gill, Mary W. Il.},
 copyright={Public Domain},
 address={New York},
 howpublished={online},
 year={cop. 1905, 1922, 1949, 1965},
 publisher={Dover Publications},
 language={eng},
 title={Manual of the trees of North America (exclusive of Mexico). Vol. 2},
 type={Text},
}