APA
WHO, . (1998). Preparation and use of food based dietary guidelines. auth., Geneva: .
Chicago
WHO, . 1998. Preparation and use of food based dietary guidelines. auth., Geneva: .
Harvard
WHO, . (1998). Preparation and use of food based dietary guidelines. auth., Geneva: .
MLA
WHO, . Preparation and use of food based dietary guidelines. auth., Geneva: . 1998.