Citazione Stile APA (7a Edizione)

Bell, J. J. (1948). The effects of geographical and scientific discovery on freedom and security in the eighteenth, nineteenth and twentieth centuries (3. impr.). Wheaton.

Citazione stile Chigago Style (17a edizione)

Bell, J. J. The Effects of Geographical and Scientific Discovery on Freedom and Security in the Eighteenth, Nineteenth and Twentieth Centuries. 3. impr. Exeter: Wheaton, 1948.

Citatione MLA (9a ed.)

Bell, J. J. The Effects of Geographical and Scientific Discovery on Freedom and Security in the Eighteenth, Nineteenth and Twentieth Centuries. 3. impr. Wheaton, 1948.