APA način citiranja (7. izdanje)

Purcell, E. A. (1973). The crisis of democratic theory: Scientific naturalism & the problem of value. University Press of Kentucky.

Čikaški stil citiranja (17. izdanje)

Purcell, Edward A. The Crisis of Democratic Theory: Scientific Naturalism & the Problem of Value. [Lexington]: University Press of Kentucky, 1973.

MLA način citiranja (9. izdanje)

Purcell, Edward A. The Crisis of Democratic Theory: Scientific Naturalism & the Problem of Value. University Press of Kentucky, 1973.