APA

Garraghan G. J., . (1946). A guide to historical method. New York: Fordham University Press.

Chicago

Garraghan Gilbert Joseph, . 1946. A guide to historical method. New York: Fordham University Press.

Harvard

Garraghan G. J., . (1946). A guide to historical method. New York: Fordham University Press.

MLA

Garraghan Gilbert Joseph, . A guide to historical method. New York: Fordham University Press. 1946.