Metcalf, W. (1959). Native trees of the San Francisco Bay region. University of California Press.
Lua i Stíl Chicago (17ú heag.)Metcalf, Woodbridge. Native Trees of the San Francisco Bay Region. Berkeley: University of California Press, 1959.
Lua MLA (9ú heag.)Metcalf, Woodbridge. Native Trees of the San Francisco Bay Region. University of California Press, 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.