PT  - JOURNAL ARTICLE
AU  - Wm. Beam
TI  - Rocks of the park
AID  - 10.2475/ajs.s3-25.146.106
DP  - 1883 Feb 01
TA  - American Journal of Science
PG  - 106
VI  - s3-25
IP  - 146
4099  - http://www.ajsonline.org/content/s3-25/146/106.short
4100  - http://www.ajsonline.org/content/s3-25/146/106.full
SO  - Am J Sci1883 Feb 01; s3-25