Sloan, C. (2011). Baby mammoth mummy: Frozen in time ; a prehistoric animal's journey into the 21st century. National Geographic.
Cita Chicago Style (17a ed.)Sloan, Christopher. Baby Mammoth Mummy: Frozen in Time ; a Prehistoric Animal's Journey into the 21st Century. Washington, D.C.: National Geographic, 2011.
Cita MLA (8a ed.)Sloan, Christopher. Baby Mammoth Mummy: Frozen in Time ; a Prehistoric Animal's Journey into the 21st Century. National Geographic, 2011.
Precaución: Estas citas no son 100% exactas.