RT Journal Article
SR Electronic
T1 Pre-Carboniferous strata in the Grand Canyon of the Colorado, Arizona
JF American Journal of Science
JO Am J Sci
FD American Journal of Science
SP 437
OP 442
DO 10.2475/ajs.s3-26.156.437
VO s3-26
IS 156
A1 Walcott, Charles Doolittle
YR 1883
UL http://www.ajsonline.org/content/s3-26/156/437.abstract
AB