APA (7th ed.) Citation

Page, T. N., & Flagg, J. M. (2013). John Marvel, Assistant. Project Gutenberg.

Chicago Style (17th ed.) Citation

Page, Thomas Nelson, and James Montgomery Flagg. John Marvel, Assistant. Project Gutenberg, 2013.

MLA (9th ed.) Citation

Page, Thomas Nelson, and James Montgomery Flagg. John Marvel, Assistant. Project Gutenberg, 2013.

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