Cita APA (7th ed.)

World Health Organization. (2004). Concise International chemical Assessment Document; As Phalt (Bitumen). IOMS.

Cita Chicago (17th ed.)

World Health Organization. Concise International Chemical Assessment Document; As Phalt (Bitumen). Ginebra: IOMS, 2004.

Cita MLA (9th ed.)

World Health Organization. Concise International Chemical Assessment Document; As Phalt (Bitumen). IOMS, 2004.