APA (7e ed.) Bronvermelding

Metcalf, W. (1959). Native trees of the San Francisco Bay region. University of California Press.

Chicago (17e ed.) Bronvermelding

Metcalf, Woodbridge. Native Trees of the San Francisco Bay Region. Berkeley: University of California Press, 1959.

MLA (9e ed.) Bronvermelding

Metcalf, Woodbridge. Native Trees of the San Francisco Bay Region. University of California Press, 1959.