APA (7th ed.) Citation

Gilbert, J. C., & Schottenfels, G. R. (2011). Stories of the Nibelungen for Young People. Project Gutenberg.

Chicago Style (17th ed.) Citation

Gilbert, John C., and Gertrude R. Schottenfels. Stories of the Nibelungen for Young People. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Gilbert, John C., and Gertrude R. Schottenfels. Stories of the Nibelungen for Young People. Project Gutenberg, 2011.

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