World Health Organization. (1969). Guide to the laboratory diagnosis of smallpox for smallpox eradication programmes.
Chicago Style (17th ed.) CitationWorld Health Organization. Guide to the Laboratory Diagnosis of Smallpox for Smallpox Eradication Programmes. Geneva, 1969.
ציטוט MLAWorld Health Organization. Guide to the Laboratory Diagnosis of Smallpox for Smallpox Eradication Programmes. 1969.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.