APA (7th ed.) Citation

Machray, R. (1945). The problem of Upper Silesia. Allen & Unwin.

Chicago Style (17th ed.) Citation

Machray, Robert. The Problem of Upper Silesia. London: Allen & Unwin, 1945.

MLA (9th ed.) Citation

Machray, Robert. The Problem of Upper Silesia. Allen & Unwin, 1945.

Warning: These citations may not always be 100% accurate.