Shackleton, . M. R. (1954). Europe: A regional geography (5th ed.). Longmans.
Cita Chicago (17th ed.)Shackleton, Margaret Reid. Europe: A Regional Geography. 5th ed. London: Longmans, 1954.
Cita MLA (9th ed.)Shackleton, Margaret Reid. Europe: A Regional Geography. 5th ed. Longmans, 1954.
Atenció: Aquestes cites poden no estar 100% correctes.