APA (7th ed.) Citation

Montgomery, R. G., & Laune, P. (2009). A Yankee Flier Over Berlin. Project Gutenberg.

Chicago Style (17th ed.) Citation

Montgomery, Rutherford G., and Paul Laune. A Yankee Flier Over Berlin. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Montgomery, Rutherford G., and Paul Laune. A Yankee Flier Over Berlin. Project Gutenberg, 2009.

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