<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold" style="font-size:10pt">Whittaker, R. H.</hi> <hi xmlns="http://www.tei-c.org/ns/1.0" style="font-size:10pt" xml:space="preserve"> (1960): "Vegetation of the Siskiyou Mountains, Oregon and California"</hi>, in: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic" style="font-size:10pt">Ecological Monographs</hi>, <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic" style="font-size:10pt">30</hi> <hi xmlns="http://www.tei-c.org/ns/1.0" style="font-size:10pt">(4), 407–407. doi: 10.2307/1948435</hi>