APA (7th ed.) Citation

Slafter, E. F. (2011). The Discovery of America by the Northmen, 985-1015. Project Gutenberg.

Chicago Style (17th ed.) Citation

Slafter, Edmund F. The Discovery of America by the Northmen, 985-1015. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Slafter, Edmund F. The Discovery of America by the Northmen, 985-1015. Project Gutenberg, 2011.

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