New interatheriines (Interatheriidae, notoungulata) from the Paleogene of central Chile and southern Argentina / Ralph B. Hitz -- [et al.].

n.s. no.42(2000)

A new Devonian trilobite from southern Illinois / by Sharat Kumar Roy --

v.6:no.4(1933)

Bulletin of the Southern California Academy of Sciences.

v.12-15 (1913-1916)

Bulletin of the Southern California Academy of Sciences.

v.8-11 (1909-1912)

An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian, by Nathaniel Lord Britton ... and Hon. Addison Brown ...

v. 1