Richards, T. (1826). Case of Severe Headache, Cured by Purgatives. Lond Med Phys J.
Chicago Style citaatRichards, Thomas. "Case of Severe Headache, Cured By Purgatives." Lond Med Phys J 1826.
MLA citatieRichards, Thomas. "Case of Severe Headache, Cured By Purgatives." Lond Med Phys J 1826.
Let op: Deze citaties zijn niet altijd 100% accuraat.