Cita APA

Williams, S. C. P. (2013). Imaging permafrost. National Academy of Sciences.

Chicago Style Citation

Williams, Sarah C. P. Imaging Permafrost. National Academy of Sciences, 2013.

Cita MLA

Williams, Sarah C. P. Imaging Permafrost. National Academy of Sciences, 2013.

Atenció: Aquestes cites poden no estar 100% correctes.