APA

Watkins K. . W., . (1978). In defence of freedom. London: cassell & co.

Chicago

Watkins K W, . 1978. In defence of freedom. London: cassell & co.

Harvard

Watkins K. . W., . (1978). In defence of freedom. London: cassell & co.

MLA

Watkins K W, . In defence of freedom. London: cassell & co. 1978.