APA (7th ed.) Citation

Longfellow, H. W. (2007). Greetings from Longfellow. Project Gutenberg.

Chicago Style (17th ed.) Citation

Longfellow, Henry Wadsworth. Greetings from Longfellow. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Longfellow, Henry Wadsworth. Greetings from Longfellow. Project Gutenberg, 2007.

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