APA (7th ed.) Citation

Hammen, O. J. (1969). The red '48ers: Karl Marx and Friedrich Engels. Scribner.

Chicago Style (17th ed.) Citation

Hammen, Oscar J. The Red '48ers: Karl Marx and Friedrich Engels. New York: Scribner, 1969.

MLA (9th ed.) Citation

Hammen, Oscar J. The Red '48ers: Karl Marx and Friedrich Engels. Scribner, 1969.

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