APA

Cather W. S., . (1931). Shadows on the rock. New York: A. A. Knopf.

Chicago

Cather Willa Sibert, . 1931. Shadows on the rock. New York: A. A. Knopf.

Harvard

Cather W. S., . (1931). Shadows on the rock. New York: A. A. Knopf.

MLA

Cather Willa Sibert, . Shadows on the rock. New York: A. A. Knopf. 1931.