Comparative effects of climatic change, cultural impact, and volcanism in the paleoecology of Flagstaff, Arizona, A.D. 900-1300, in Sheets, P.D., and Grayson, D.K., eds., Volcanic activity and human ecology

Hevly, R.H., Kelly, R.E., Anderson, G.A., and Olsen, S.J., 1979, Comparative effects of climatic change, cultural impact, and volcanism in the paleoecology of Flagstaff, Arizona, A.D. 900-1300, in Sheets, P.D., and Grayson, D.K., eds., Volcanic activity and human ecology: San Diego, Academic Press, p. 487-517.