APA (7th ed.) Citation

Hudson, G. E. (1956). Tierra purpúrea.

Chicago Style (17th ed.) Citation

Hudson, Guillermo Enrique. Tierra Purpúrea. 1956.

MLA (9th ed.) Citation

Hudson, Guillermo Enrique. Tierra Purpúrea. 1956.

Warning: These citations may not always be 100% accurate.