Raikers, R. L. (1967). Water, weather and prehistory. Baker.
Cita Chicago (17th ed.)Raikers, Robert Lawrence. Water, Weather and Prehistory. London: Baker, 1967.
Cita MLA (9th ed.)Raikers, Robert Lawrence. Water, Weather and Prehistory. Baker, 1967.
Atenció: Aquestes cites poden no estar 100% correctes.