SOMMERVILLE, D. (1959). Analytical geography of three. Cambridge Univ. Press.
Cita Chicago (17th ed.)SOMMERVILLE, D.M.Y. Analytical Geography of Three. London: Cambridge Univ. Press, 1959.
Cita MLA (9th ed.)SOMMERVILLE, D.M.Y. Analytical Geography of Three. Cambridge Univ. Press, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.