APA (7th ed.) Citation

Leopold, R. W. (1969). Robert Dale Owen, a biography. Octagon Books.

Chicago Style (17th ed.) Citation

Leopold, Richard William. Robert Dale Owen, a Biography. New York: Octagon Books, 1969.

MLA (8th ed.) Citation

Leopold, Richard William. Robert Dale Owen, a Biography. Octagon Books, 1969.

Warning: These citations may not always be 100% accurate.