APA
WHO, . (1998). Quality control merhods for medicinal plant materials. auth., Geneva: .
Chicago
WHO, . 1998. Quality control merhods for medicinal plant materials. auth., Geneva: .
Harvard
WHO, . (1998). Quality control merhods for medicinal plant materials. auth., Geneva: .
MLA
WHO, . Quality control merhods for medicinal plant materials. auth., Geneva: . 1998.