Willerslev, E., Hansen, A. J., Christensen, B., Steffensen, J. P., & Arctander, P. (1999). Diversity of Holocene life forms in fossil glacier ice. The National Academy of Sciences.
Citación estilo ChicagoWillerslev, Eske, Anders J. Hansen, Bent Christensen, Jørgen Peder Steffensen, and Peter Arctander. Diversity of Holocene Life Forms in Fossil Glacier Ice. The National Academy of Sciences, 1999.
Cita MLAWillerslev, Eske, et al. Diversity of Holocene Life Forms in Fossil Glacier Ice. The National Academy of Sciences, 1999.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.