PT  - JOURNAL ARTICLE
AU  - G. K. Warren
TI  - Valley of the Minnesota River and of the Mississippi River to the junction of the Ohio; its origin considered
AID  - 10.2475/ajs.s3-16.96.417
DP  - 1878 Dec 01
TA  - American Journal of Science
PG  - 417--431
VI  - s3-16
IP  - 96
4099  - http://www.ajsonline.org/content/s3-16/96/417.short
4100  - http://www.ajsonline.org/content/s3-16/96/417.full
SO  - Am J Sci1878 Dec 01; s3-16