Clark, W. E. L. G. (1929). Report to the Committee on Vaccination on an anatomical investigation into the routes by which infections may pass from the nasal cavities into the brain. H.M. Stationary Off..

Clark, Wilfrid E. Le Gros. Report to the Committee on Vaccination on an Anatomical Investigation into the Routes by Which Infections May Pass from the Nasal Cavities into the Brain. London: H.M. Stationary Off., 1929.

Clark, Wilfrid E. Le Gros. Report to the Committee on Vaccination on an Anatomical Investigation into the Routes by Which Infections May Pass from the Nasal Cavities into the Brain. H.M. Stationary Off., 1929.