APA

Cruickshank A. D., . (1947). Wings in the wilderness. New York: Oxford Univversity Press.

Chicago

Cruickshank Allan D, . 1947. Wings in the wilderness. New York: Oxford Univversity Press.

Harvard

Cruickshank A. D., . (1947). Wings in the wilderness. New York: Oxford Univversity Press.

MLA

Cruickshank Allan D, . Wings in the wilderness. New York: Oxford Univversity Press. 1947.