PT  - JOURNAL ARTICLE
AU  - Derby, O. A.
TI  - Observations on the crown structure of Psaronius braziliensis
AID  - 10.2475/ajs.s4-38.224.149
DP  - 1914 Aug 01
TA  - American Journal of Science
PG  - 149--156
VI  - s4-38
IP  - 224
4099  - http://www.ajsonline.org/content/s4-38/224/149.short
4100  - http://www.ajsonline.org/content/s4-38/224/149.full
SO  - Am J Sci1914 Aug 01; s4-38