APA

Winchell A., . (1886). Walks and talks in the Geological Field. New York: Chautauqua Press.

Chicago

Winchell Alexander, . 1886. Walks and talks in the Geological Field. New York: Chautauqua Press.

Harvard

Winchell A., . (1886). Walks and talks in the Geological Field. New York: Chautauqua Press.

MLA

Winchell Alexander, . Walks and talks in the Geological Field. New York: Chautauqua Press. 1886.