APA (7th ed.) Citation

Samuel, H. L. S. (1942). An unknown land. George Allen & Unwin.

Chicago Style (17th ed.) Citation

Samuel, Herbert Louis Samuel. An Unknown Land. London: George Allen & Unwin, 1942.

MLA (8th ed.) Citation

Samuel, Herbert Louis Samuel. An Unknown Land. George Allen & Unwin, 1942.

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