Further reports (no. 4) on flies as carriers of infection
- Story by
- Austen, E. E. (Ernest Edward), 1867-1938, Copeman, S. Monckton (Sydney Monckton), 1862-, Graham-Smith, G. S. (George Stuart), Great Britain. Local Government Board, Howlett, F. M, Merriman, Gordon, Nicoll, William
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