http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
WHO Regional Symposium on Vesical Calculus Disease, sponsored by the World Health Organization, Bangkok, Thailand, January 1972
WHO Regional Symposium on Vesical Calculus Disease, 1972 : Bangkok)
National Institute of Arthritis, Metabolism, and Digestive Diseases (U.S.)