APA (7th ed.) Citation

Heine, H., Levy, O., Pogány, W., & Scheffauer, H. G. (2010). Atta Troll. Project Gutenberg.

Chicago Style (17th ed.) Citation

Heine, Heinrich, Oscar Levy, Willy Pogány, and Herman George Scheffauer. Atta Troll. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Heine, Heinrich, et al. Atta Troll. Project Gutenberg, 2010.

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