APA

Cunningham W. F., . (1930). Notes on epistemology. New York : Declan X: McMullen.

Chicago

Cunningham Walter F, . 1930. Notes on epistemology. New York : Declan X: McMullen.

Harvard

Cunningham W. F., . (1930). Notes on epistemology. New York : Declan X: McMullen.

MLA

Cunningham Walter F, . Notes on epistemology. New York : Declan X: McMullen. 1930.