TY - BOOK AU - Hintze,Lehi AU - Yochelson,Ellis TI - The grand staircase at kanab creek in 1879 : : the grand canyon's third dimension - its remarkable first measuremente by C. D. Walcott / SN - 978-0-8425-2743-9 U1 - 551.09791 PY - 0000///[s.n.] CY - Provo : PB - Department of geological sciences, KW - Geologia KW - Estados Unidos KW - Grand Canyon ER -