Παραπομπή APA

Sshannon, R. (1974). Crisis of imperialism 1865-1915. Hart Davis.

Παραπομπή Chicago Style

Sshannon, Richard. Crisis of Imperialism 1865-1915. London: Hart Davis, 1974.

Παραπομπή MLA

Sshannon, Richard. Crisis of Imperialism 1865-1915. Hart Davis, 1974.