APA (7th ed.) Citation

Smith, H. B. (2008). Between the Lines Secret Service Stories Told Fifty Years After. Project Gutenberg.

Chicago Style (17th ed.) Citation

Smith, Henry Bascom. Between the Lines Secret Service Stories Told Fifty Years After. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Smith, Henry Bascom. Between the Lines Secret Service Stories Told Fifty Years After. Project Gutenberg, 2008.

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