APA Style
Organization, W, H. (2007).
WHO Guidlines for Assessing Quality of Herbal Medicines with Reference to Contaminants and Residues .
Geneva:
WHO.
MLA Style
Organization, World, Health.
"WHO Guidlines for Assessing Quality of Herbal Medicines with Reference to Contaminants and Residues".
Geneva:
WHO,
2007.
print.