APA (7th ed.) Citation

Wall, J. T. (1999). The boundless frontier: America from Christopher Columbus to Abraham Lincoln. University Press of America.

Chicago Style (17th ed.) Citation

Wall, James T. The Boundless Frontier: America from Christopher Columbus to Abraham Lincoln. Lanham, Md.: University Press of America, 1999.

MLA (9th ed.) Citation

Wall, James T. The Boundless Frontier: America from Christopher Columbus to Abraham Lincoln. University Press of America, 1999.