Verbatim text: Tucker, J. M. and H. S. Haskell. 1960. Quercus dunnii and Q. chrysolepis in Arizona. Brittonia 12: 196-219.
Author: Tucker, J.M., Haskell, H.S.
Year: 1960
Title: Quercus dunnii and Q. chrysolepis in Arizona
Journal: Brittonia
Volume: 12
Pages: 196–219