[es] [Gutenberg 50430] • Historia natural y moral de las Indias (vol 2 of 2) Fondo De Cultura Economica USA
[es] [Gutenberg 62450] • Historia del Paraguay, Río de La Plata y Tucumán Wentworth Press
[en] [Gutenberg 47028] • Life Histories of North American Shore Birds, Part 1 (of 2) DOVER PUBLICATIONS, INC. NEW YORK