APA (7th ed.) Citation

Spix, J. B. v., & Martius, C. F. P. v. Reise in Brasilien.

Chicago Style (17th ed.) Citation

Spix, Johann Baptist von, and Carl Friedrich Philipp von Martius. Reise in Brasilien. Augsburg.

MLA (9th ed.) Citation

Spix, Johann Baptist von, and Carl Friedrich Philipp von Martius. Reise in Brasilien.