PT  - JOURNAL ARTICLE
AU  - Othniel Charles Marsh
TI  - Additional characters of the Ceratopsidae, with notice of new Cretaceous dinosaurs
AID  - 10.2475/ajs.s3-39.233.418
DP  - 1890 May 01
TA  - American Journal of Science
PG  - 418--426
VI  - s3-39
IP  - 233
4099  - http://www.ajsonline.org/content/s3-39/233/418.short
4100  - http://www.ajsonline.org/content/s3-39/233/418.full
SO  - Am J Sci1890 May 01; s3-39