Mannion, A. M. (1999). Natural environmental change: The last 3 million years. Routledge.
Citazione stile Chigago Style (17a edizione)Mannion, A. M. Natural Environmental Change: The Last 3 Million Years. London: Routledge, 1999.
Citatione MLA (9a ed.)Mannion, A. M. Natural Environmental Change: The Last 3 Million Years. Routledge, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.