Author
Broadhurst, Jean, 1873-1954
1
Hasan Tahsin, Dr
1
International Health Exhibition London, England
1
Johns Hopkins University. School of Hygiene and Public Health
1
Newman, George, Sir, 1870-1948
1
Parkes, Louis Coltman, 1857-1942
1
United States. Public Health Service
1
United States. Public Health Service. Division of Sanitation
1
Whitelegge, Arthur, Sir, 1852-1933
1