Comparison of sand distribution between April 1994 and June 1996 along six reaches of the Colorado River in Grand Canyon, Arizona [microform] / by Roberto J. Anima ... [et al.] (Open-file report ; 98-141)
Comparison of sand distribution between April 1994 and June 1996 along six reaches of the Colorado River in Grand Canyon, Arizona [microform] / by Roberto J. Anima ... [et al.]