APA (7th ed.) Citation

Gibbon, E., & Prothero, B. R. E. (2013). Private Letters of Edward Gibbon (1753-1794) Volume 1 (of 2). Project Gutenberg.

Chicago Style (17th ed.) Citation

Gibbon, Edward, and Baron Rowland Edmund Prothero. Private Letters of Edward Gibbon (1753-1794) Volume 1 (of 2). Project Gutenberg, 2013.

MLA (9th ed.) Citation

Gibbon, Edward, and Baron Rowland Edmund Prothero. Private Letters of Edward Gibbon (1753-1794) Volume 1 (of 2). Project Gutenberg, 2013.

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