Big Brother is listening :
phonetappers & the security state /
Duncan Campbell.
APA Citation
Campbell, D. (1981). Big Brother is listening: phonetappers & the security state. London: New Statesman.
MLA Citation
Campbell, Duncan. Big Brother Is Listening: Phonetappers & the Security State. London: New Statesman, 1981.
Warning: These citations may not always be complete (especially for serials).