@book{394955,
	author = {HERBIG, Katherine L.},
	title = {The expanding spectrum of espionage by Americans, 1947 – 2015},
	publisher = {Office of People Analytics. Defense Personnel and Security Research Center},
	year = {2017},
	address = {Seaside, CA},
	note = {Technical Report 17-10 (August 2017).}
}