Cita APA (7a ed.)

Abell, E., & Fisher, L. E. (1958). Westward, Westward, Westward: The long trail and the men who followed it. Franklin Watts.

Cita Chicago Style (17a ed.)

Abell, Elizabeth, y Leonard Everett Fisher. Westward, Westward, Westward: The Long Trail and the Men Who Followed It. New York: Franklin Watts, 1958.

Cita MLA (9a ed.)

Abell, Elizabeth, y Leonard Everett Fisher. Westward, Westward, Westward: The Long Trail and the Men Who Followed It. Franklin Watts, 1958.