APA (7th ed.) Citation

Friedrich, W., Flotow, F. v., Carle, G., & Baum, M. L. (2012). Martha or, The Fair at Richmond. Project Gutenberg.

Chicago Style (17th ed.) Citation

Friedrich, W., Friedrich von Flotow, Glen Carle, and M. Louise Baum. Martha or, The Fair at Richmond. Project Gutenberg, 2012.

MLA (9th ed.) Citation

Friedrich, W., et al. Martha or, The Fair at Richmond. Project Gutenberg, 2012.

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