APA (7th ed.) Citation

Nye, R. B., & Morpurgo, J. E. A history of the United States. Penguin Books.

Chicago Style (17th ed.) Citation

Nye, Russel Blaine, and Jack E. Morpurgo. A History of the United States. Harmondsworth [u.a.]: Penguin Books.

MLA (9th ed.) Citation

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