Template:Ref-Hassall1849
From Embryology
Hassall AH. The microscopic anatomy of the human body, in health and disease. (1849) Samuel Hurley, Fleet Street, London.[ https://archive.org/details/b2130791x_0001 Internet Archive]
Hassall AH. The microscopic anatomy of the human body, in health and disease. (1849) Samuel Hurley, Fleet Street, London.[ https://archive.org/details/b2130791x_0001 Internet Archive]