PT  - JOURNAL ARTICLE
AU  - John Wesley Powell
TI  - Types of orographic structure
AID  - 10.2475/ajs.s3-12.72.414
DP  - 1876 Dec 01
TA  - American Journal of Science
PG  - 414--428
VI  - s3-12
IP  - 72
4099  - http://www.ajsonline.org/content/s3-12/72/414.short
4100  - http://www.ajsonline.org/content/s3-12/72/414.full
SO  - Am J Sci1876 Dec 01; s3-12