APA (7th ed.) Citation

Porter, E. H. (2004). Across the Years. Project Gutenberg.

Chicago Style (17th ed.) Citation

Porter, Eleanor H. Across the Years. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Porter, Eleanor H. Across the Years. Project Gutenberg, 2004.

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