APA

(1875). Explorations made in the Valley of the river Madeira, from 1749 to 1868. : .

Chicago

1875. Explorations made in the Valley of the river Madeira, from 1749 to 1868. : .

Harvard

(1875). Explorations made in the Valley of the river Madeira, from 1749 to 1868. : .

MLA

Explorations made in the Valley of the river Madeira, from 1749 to 1868. : . 1875.