APA (7th ed.) Citation

Morris, W., Turner, W., Scott, H., & Mackail, J. W. (2004). The Story of Sigurd the Volsung. Project Gutenberg.

Chicago Style (17th ed.) Citation

Morris, William, Winifred Turner, Helen Scott, and J. W. Mackail. The Story of Sigurd the Volsung. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Morris, William, et al. The Story of Sigurd the Volsung. Project Gutenberg, 2004.

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