Some Advantages of Field-Work on Surface Water Supplies

Autor:	Parker, Horatio N.
Zdroj:	Transactions of the American Microscopical Society, 1901 May 01. 22, 13-24.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/3221310 Zobrazit plný text záznamu