World Health Organization. (2001). Concise International chemical Assessment Document; Barium and Barium Compounds. IOMS.
Citação do estilo Chicago (17ª ed.)World Health Organization. Concise International Chemical Assessment Document; Barium and Barium Compounds. Ginebra: IOMS, 2001.
Citação MLA (9ª ed.)World Health Organization. Concise International Chemical Assessment Document; Barium and Barium Compounds. IOMS, 2001.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.