By Arcaya, Pedro Manuel.
Caracas Editorial Juridica Venezolana," 1963 .
267 p.

By Federmann, Nikolaus.
Caracas Lit. y tip. del Comercio 1916 .
135 p. , The original account of Federmann's expedition, written in Spanish by a "notario scribano publico" was translated into German by Federmann and published for the first time with additions by his brother-in-law, Hans Kiffhaber, under title: Indianische historia. Ein schöne kurtzweilige historia Niclaus Federmanns des jüngern von Ulm erster raise ... [Hagenaw, Gedruckt von Sigmund Bund] 1557. 24 cm..

By Arcaya, Pedro Manuel.
Washington, D.C. | [Baltimore Sun printing office, inc.] 1935 .
3 p. b., 5-217 p., 1 b. , "Fe de erratas" slip inserted. 20 cm..

By Arcaya, Pedro Manuel.
Washington, D. C. | [Baltimore, Md. The sun printing company] 1936 .
238 p. , Published in port, Washington, 1935, with title: Venezuela y su actual régimen. 19cm..