Ashcroft, T. An outline of modern imperialism: Largely revised, and in part re-written by an editorial comittee. The Plebs League.

Ashcroft, Thomas. An Outline of Modern Imperialism: Largely Revised, and in Part Re-written by an Editorial Comittee. London: The Plebs League.

Ashcroft, Thomas. An Outline of Modern Imperialism: Largely Revised, and in Part Re-written by an Editorial Comittee. The Plebs League.