World Health Organization. (2004). Concise International chemical Assessment Document; As Phalt (Bitumen). IOMS.
Chicago Style (17th ed.) CitationWorld Health Organization. Concise International Chemical Assessment Document; As Phalt (Bitumen). Ginebra: IOMS, 2004.
ציטוט MLAWorld Health Organization. Concise International Chemical Assessment Document; As Phalt (Bitumen). IOMS, 2004.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.