Nilsson, T. (1983). The pleistocene: Geology and life in the quaternary ice age. D. Reidel.
Cita Chicago (17th ed.)Nilsson, Tage. The Pleistocene: Geology and Life in the Quaternary Ice Age. Dordrecht, Holland: D. Reidel, 1983.
Cita MLA (9th ed.)Nilsson, Tage. The Pleistocene: Geology and Life in the Quaternary Ice Age. D. Reidel, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.