PT  - JOURNAL ARTICLE
AU  - Othniel Charles Marsh
TI  - The skull of the gigantic Ceratopsidae
AID  - 10.2475/ajs.s3-38.228.501
DP  - 1889 Dec 01
TA  - American Journal of Science
PG  - 501--506
VI  - s3-38
IP  - 228
4099  - http://www.ajsonline.org/content/s3-38/228/501.short
4100  - http://www.ajsonline.org/content/s3-38/228/501.full
SO  - Am J Sci1889 Dec 01; s3-38