APA-viite (7. p.)

Fildes, P. G. (1920). Unsuspected involvement of the central nervous system in syphilis. H. M. Stationery Off..

Chicago-viite (17. p.)

Fildes, Paul Gordon. Unsuspected Involvement of the Central Nervous System in Syphilis. [London: H. M. Stationery Off., 1920.

MLA-viite (8. p.)

Fildes, Paul Gordon. Unsuspected Involvement of the Central Nervous System in Syphilis. H. M. Stationery Off., 1920.