On the Discovery of Reptilian Remains in the Pennsylvanian Near Pittsburg, Pennsylvania

Autor:	Raymond, Percy E.
Zdroj:	Science, 1907 Dec . 26(676), 835-836.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/1632576 Zobrazit plný text záznamu