Russell, Claire. "The Tree as a Kinship Symbol." Folklore [Online ed.] http://www.jstor.org/stable/1259600?seq=9 (90:2 (1979))

Russell, Claire. "The Tree as a Kinship Symbol." Folklore [Online ed.] http://www.jstor.org/stable/1259600?seq=9 (90:2 (1979))