APA

O'Hanlon M. E., . (2009). Budgeting for Hard Power: defense and security spending under Barack Obama. Washington, D.C: Brookings Institution Press.

Chicago

O'Hanlon Michael E, . 2009. Budgeting for Hard Power: defense and security spending under Barack Obama. Washington, D.C: Brookings Institution Press.

Harvard

O'Hanlon M. E., . (2009). Budgeting for Hard Power: defense and security spending under Barack Obama. Washington, D.C: Brookings Institution Press.

MLA

O'Hanlon Michael E, . Budgeting for Hard Power: defense and security spending under Barack Obama. Washington, D.C: Brookings Institution Press. 2009.