An Occurrence of Coal Which Bears Evidence of Unusual Conditions Accompanying Its Deposition

Autor:	Hyde, Jesse E.
Zdroj:	The Journal of Geology, 1912 May 01. 20(4), 316-330.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/30060719 Zobrazit plný text záznamu