MLA

Ehrhard, Thomas P. Unmanned Aerial Vehicles In the United States Armed Services : a Comparative Study of Weapon System Innovation. 2000.

APA

Ehrhard, T. P. (2000). Unmanned aerial vehicles in the United States armed services : a comparative study of weapon system innovation. .

Chicago

Ehrhard, Thomas P. Unmanned Aerial Vehicles In the United States Armed Services: A Comparative Study of Weapon System Innovation. Thesis (Ph.D.)--Johns Hopkins University, 2001..