RT Journal Article
SR Electronic
T1 On the Keokuk beds at Keokuk, Iowa
JF American Journal of Science
JO Am J Sci
FD American Journal of Science
SP 295
OP 300
DO 10.2475/ajs.s3-40.238.295
VO s3-40
IS 238
A1 Gordon, Charles Henry
YR 1890
UL http://www.ajsonline.org/content/s3-40/238/295.abstract
AB