APA
World Helth Organization TRS581, . (1975). Non proprietary names for pharmaceutical substonces. : .
Chicago
World Helth Organization TRS581, . 1975. Non proprietary names for pharmaceutical substonces. : .
Harvard
World Helth Organization TRS581, . (1975). Non proprietary names for pharmaceutical substonces. : .
MLA
World Helth Organization TRS581, . Non proprietary names for pharmaceutical substonces. : . 1975.