APA

Parkman F., . (1910). The Oregon trail. Boston: Ginn & Co.

Chicago

Parkman Francis, . 1910. The Oregon trail. Boston: Ginn & Co.

Harvard

Parkman F., . (1910). The Oregon trail. Boston: Ginn & Co.

MLA

Parkman Francis, . The Oregon trail. Boston: Ginn & Co. 1910.