APA

Powell Robert,, . (1990). Nuclear deterrence theory : The seven for credibility. Cambridge: Cambridge University Press.

Chicago

Powell Robert,, . 1990. Nuclear deterrence theory : The seven for credibility. Cambridge: Cambridge University Press.

Harvard

Powell Robert,, . (1990). Nuclear deterrence theory : The seven for credibility. Cambridge: Cambridge University Press.

MLA

Powell Robert,, . Nuclear deterrence theory : The seven for credibility. Cambridge: Cambridge University Press. 1990.