World Health Organization. (2001). Concise International chemical Assessment Document; Barium and Barium Compounds. IOMS.
Chicago-referens (17:e uppl.)World Health Organization. Concise International Chemical Assessment Document; Barium and Barium Compounds. Ginebra: IOMS, 2001.
MLA-referens (9:e uppl.)World Health Organization. Concise International Chemical Assessment Document; Barium and Barium Compounds. IOMS, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.