Kirkwood, J. E. (1930). Northern Rocky Mountain trees and shrubs. Stanford University Press.
Style de citation Chicago (17e éd.)Kirkwood, J. E. Northern Rocky Mountain Trees and Shrubs. Stanford University, Calif.: Stanford University Press, 1930.
Style de citation MLA (8e éd.)Kirkwood, J. E. Northern Rocky Mountain Trees and Shrubs. Stanford University Press, 1930.
Attention : ces citations peuvent ne pas être correctes à 100%.