APA (7th ed.) Citation

Petrovitch, W. M., James, G., & Sewell, W. (2012). Hero Tales and Legends of the Serbians. Project Gutenberg.

Chicago Style (17th ed.) Citation

Petrovitch, Woislav M., Gilbert James, and William Sewell. Hero Tales and Legends of the Serbians. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Petrovitch, Woislav M., et al. Hero Tales and Legends of the Serbians. Project Gutenberg, 2012.

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