Cita APA (7th ed.)
Bethell, N., & Raabe, G. (1980). RUSSIA besieged. Time-Life International.
Cita Chicago (17th ed.)
Bethell, Nicholas, i Gerhard Raabe. RUSSIA Besieged. Amsterdam: Time-Life International, 1980.
Cita MLA (9th ed.)
Bethell, Nicholas, i Gerhard Raabe. RUSSIA Besieged. Time-Life International, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.