APA (7th ed.) Citation

Osborne, S. (1920). The Upper Silesian question and Germany's coal problem: In two parts complete in one volume. Allen and Unwin.

Chicago Style (17th ed.) Citation

Osborne, Sidney. The Upper Silesian Question and Germany's Coal Problem: In Two Parts Complete in One Volume. London: Allen and Unwin, 1920.

MLA (8th ed.) Citation

Osborne, Sidney. The Upper Silesian Question and Germany's Coal Problem: In Two Parts Complete in One Volume. Allen and Unwin, 1920.