APA (7th ed.) Citation

Nye, R. B., & Morpurgo, J. E. (1964). A history of the United States (Second Edition.). Penguin Books.

Chicago Style (17th ed.) Citation

Nye, Russel Blaine, and Jack E. Morpurgo. A History of the United States. Second Edition. Harmondsworth, Middlesex: Penguin Books, 1964.

MLA (9th ed.) Citation

Nye, Russel Blaine, and Jack E. Morpurgo. A History of the United States. Second Edition. Penguin Books, 1964.