PT  - JOURNAL ARTICLE
AU  - Charles Rollin Keyes
TI  - The Redrock sandstone of Marion County, Iowa
AID  - 10.2475/ajs.s3-41.244.273
DP  - 1891 Apr 01
TA  - American Journal of Science
PG  - 273--276
VI  - s3-41
IP  - 244
4099  - http://www.ajsonline.org/content/s3-41/244/273.short
4100  - http://www.ajsonline.org/content/s3-41/244/273.full
SO  - Am J Sci1891 Apr 01; s3-41