Macdougall, J. D. (2013). Frozen earth: The once and future story of ice ages. University of California Press.
Citazione stile Chigago Style (17a edizione)Macdougall, J. D. Frozen Earth: The Once and Future Story of Ice Ages. Berkeley: University of California Press, 2013.
Citatione MLA (9a ed.)Macdougall, J. D. Frozen Earth: The Once and Future Story of Ice Ages. University of California Press, 2013.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.