APA

Burton J. W., . (1968). Systems, states, diplomacy and rules. London: Cambridge U.P.

Chicago

Burton John W, . 1968. Systems, states, diplomacy and rules. London: Cambridge U.P.

Harvard

Burton J. W., . (1968). Systems, states, diplomacy and rules. London: Cambridge U.P.

MLA

Burton John W, . Systems, states, diplomacy and rules. London: Cambridge U.P. 1968.