APA Edition Citation

Nye, R. B., & Morpurgo, J. E. (1955). A history of the United States, Vol.I. Penguin Books.

Chicago Edition Citation

Nye, Russel B., and J. E. Morpurgo. A History of the United States, Vol.I. [Harmondsworth, Middlesex]: Penguin Books, 1955.

MLA Edition Citation

Nye, Russel B., and J. E. Morpurgo. A History of the United States, Vol.I. Penguin Books, 1955.