APA (7th ed.) Citation

Harvey, A. G. (1947). Douglas of the fir: A biography of David Douglas, botanist. Harvard Univ. Press.

Chicago Style (17th ed.) Citation

Harvey, Athelstan George. Douglas of the Fir: A Biography of David Douglas, Botanist. Cambridge: Harvard Univ. Press, 1947.

MLA (9th ed.) Citation

Harvey, Athelstan George. Douglas of the Fir: A Biography of David Douglas, Botanist. Harvard Univ. Press, 1947.

Warning: These citations may not always be 100% accurate.