APA (7th ed.) Citation

Gary, R. (2008). The presidents were here: A state-by-state historical guide. McFarland & Co.

Chicago Style (17th ed.) Citation

Gary, Ralph. The Presidents Were Here: A State-by-state Historical Guide. Jefferson, NC [u.a.]: McFarland & Co, 2008.

MLA (9th ed.) Citation

Gary, Ralph. The Presidents Were Here: A State-by-state Historical Guide. McFarland & Co, 2008.