Neidhard, C. 1. (1860). On the efficacy of Crotalus horridus in yellow fever: Also in malignant, bilious, and remittent fevers : with an account of Humboldt's prophylactic inoculation of the venom of a serpent at Havana, Cuba. New-York: William Radde.

Neidhard, C. 1809-1895. On the Efficacy of Crotalus Horridus in Yellow Fever: Also in Malignant, Bilious, and Remittent Fevers : With an Account of Humboldt's Prophylactic Inoculation of the Venom of a Serpent At Havana, Cuba. New-York: William Radde, 1860.

Neidhard, C. 1809-1895. On the Efficacy of Crotalus Horridus in Yellow Fever: Also in Malignant, Bilious, and Remittent Fevers : With an Account of Humboldt's Prophylactic Inoculation of the Venom of a Serpent At Havana, Cuba. New-York: William Radde, 1860.