Gregory, G. (1827). On Constitutional Inaptitude to Cow-Pox. Lond Med Phys J.
Citação norma ChicagoGregory, George. "On Constitutional Inaptitude to Cow-Pox." Lond Med Phys J 1827.
MLA引文Gregory, George. "On Constitutional Inaptitude to Cow-Pox." Lond Med Phys J 1827.
警告：這些引文格式不一定是100％准確.