APA Style
Hoffman, J., Graham, P. (2009).
Introduction to Political Theory (2nd Ed).
Harlow, Essex, England ; New Y:
Pearson/Longman.
MLA Style
Hoffman, John., Graham, Paul.
"Introduction to Political Theory".
2nd Ed
Harlow, Essex, England ; New Y:
Pearson/Longman,
2009.
Books.