Letts, Son & Co. South America, Brazil, &C. Map. London: Letts, Son & Co., 1883. Accessed December 24, 2022. https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~31487~1150443:South-America-1-?sort=pub_list_no_initialsort%2Cpub_list_no_initialsort%2Cpub_date%2Cpub_date#.

Letts, Son & Co. South America, Brazil, &C. Map. London: Letts, Son & Co., 1883. Accessed December 24, 2022. https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~31487~1150443:South-America-1-?sort=pub_list_no_initialsort%2Cpub_list_no_initialsort%2Cpub_date%2Cpub_date#.