Cita APA (7a ed.)
Macdougall, J. D. (2013). Frozen earth: The once and future story of ice ages. University of California Press.
Cita Chicago Style (17a ed.)
Macdougall, J. D. Frozen Earth: The Once and Future Story of Ice Ages. Berkeley: University of California Press, 2013.
Cita MLA (9a ed.)
Macdougall, J. D. Frozen Earth: The Once and Future Story of Ice Ages. University of California Press, 2013.
Precaución: Estas citas no son 100% exactas.