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References
- ↑ Llama 'trail' reveals fall of mighty Incas [ dead link ]. Telegraph.co.uk. Retrieved 25/02/08.
- ↑ Chepstow-Lusty, Alex; Frogley, Michael; Bauer, Brian; Leng, Melanie; Cundy, Andy; Boessenkol, Karin; Goida, Alain (2007). "Evaluating socio-economic change in the Andes using oribatid mite abundances as indicators of domestic animal densities". Journal of Archaeological Science. 34 (7): 1178–1186. doi:10.1016/j.jas.2006.12.023.
- ↑ "Mick Frogley". sussex.ac.uk. Sussex University. Retrieved 12 February 2019.
