APA

Douglas D., . (1959). Journal kept by David Douglas during his travels in North America, 1823-1827. New York: Antiquarian Press.

Chicago

Douglas David, . 1959. Journal kept by David Douglas during his travels in North America, 1823-1827. New York: Antiquarian Press.

Harvard

Douglas D., . (1959). Journal kept by David Douglas during his travels in North America, 1823-1827. New York: Antiquarian Press.

MLA

Douglas David, . Journal kept by David Douglas during his travels in North America, 1823-1827. New York: Antiquarian Press. 1959.