APA (7th ed.) Citation

Mclellan, D. (1973). Karl Marks His life and thought. Macmillan.

Chicago Style (17th ed.) Citation

Mclellan, David. Karl Marks His Life and Thought. London: Macmillan, 1973.

MLA (9th ed.) Citation

Mclellan, David. Karl Marks His Life and Thought. Macmillan, 1973.