Plumb, J. H., & Trevelyan, G. M. (1955). Studies in social history. Longmans, Green.
Cita Chicago (17th ed.)Plumb, J. H., i George Macaulay Trevelyan. Studies in Social History. Lond.: Longmans, Green, 1955.
Cita MLA (8th ed.)Plumb, J. H., i George Macaulay Trevelyan. Studies in Social History. Longmans, Green, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.