APA (7th ed.) Citation

Wallace, F. L., & Francis, D. (2010). The Impossible Voyage Home. Project Gutenberg.

Chicago Style (17th ed.) Citation

Wallace, F. L., and Dick Francis. The Impossible Voyage Home. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Wallace, F. L., and Dick Francis. The Impossible Voyage Home. Project Gutenberg, 2010.

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