APA (7th ed.) Citation

Nye, R. B., & Morpurgo, J. E. (1970). A history of the United States (3. ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Nye, Russel Blaine, and Jack E. Morpurgo. A History of the United States. 3. ed. Harmondsworth [u.a.]: Penguin Books, 1970.

MLA (9th ed.) Citation

Nye, Russel Blaine, and Jack E. Morpurgo. A History of the United States. 3. ed. Penguin Books, 1970.