UL standards for safety—a perspective and prospective view of a unique development process

Autor:	Hoffman, S. David
Zdroj:	Professional Safety, 1977 Aug 01. 22(8), 42-46.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/45427889 Zobrazit plný text záznamu