Bunnett, R. (1965). Physical geography in diagrams. Longmans.
Cita Chicago (17th ed.)Bunnett, R.B. Physical Geography in Diagrams. London: Longmans, 1965.
Cita MLA (9th ed.)Bunnett, R.B. Physical Geography in Diagrams. Longmans, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.