(1989). Lebendige Heraldik. Transcommercial Operating and Finance Establishment.
Cita Chicago (17th ed.)Lebendige Heraldik. Vaduz: Transcommercial Operating and Finance Establishment, 1989.
Cita MLA (8th ed.)Lebendige Heraldik. Transcommercial Operating and Finance Establishment, 1989.
Atenció: Aquestes cites poden no estar 100% correctes.