Many books on the topic will be under the following subject headings or their narrower terms. Some subject headings that may be useful include:
Drones
Martin J. Dougherty
Published: 2014
ISBN: 0545664764
Call number: QUAD. 623.74 D732dr 2014
Sudden justice : America’s secret drone wars
Author: Chris Woods
Published: 2015
ISBN: 0190202599
Call number: KZ6687 .W66 2015
Recent advances in research on unmanned aerial vehicles [electronic resource]
Authors: Fariba Fahroo, Le Yi Wang & George Yin
Published: 2013
ISBN: 3642376940
Call number: UG1242.D7 R43 2013
Advances in unmanned aerial vehicles [electronic resource] : state of the art and the road to autonomy
Editor: Kimon P. Valavanis
Published: 2007
ISBN: 1402061145
Call number: UG1242.D7 A38 2007eb
Spies in the sky [electronic resource] : surveillance satellites in war and peace
Author: Pat Norris
Published: 2008
ISBN: 0387716734
Call number: UB250 .N67 2008eb
Killing by remote control [electronic resource] : the ethics of an unmanned military
Editor: Bradley Jay Stawser
Published: 2013
ISBN: 0199926123
Call number: UG479 .K55 2013eb