Comment on 'Use of packrat middens to determine rates of cliff retreat in the eastern Grand Canyon, Arizona' by Cole, K.L., and Mayer, L.
Haman, J.F., 1983, Comment on 'Use of packrat middens to determine rates of cliff retreat in the eastern Grand Canyon, Arizona' by Cole, K.L., and Mayer, L.: Geology, v. 11, no. 5, p. 315.
