(1940). Problems of Ageing: Biological and Medical Aspects. Ind Med Gaz.
Čikaški stil citiranja"Problems of Ageing: Biological and Medical Aspects." Ind Med Gaz 1940.
MLA način citiranja"Problems of Ageing: Biological and Medical Aspects." Ind Med Gaz 1940.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.