Citazione Stile APA (7a Edizione)

Smith, T. G. (2006). Green republican: John Saylor and the preservation of America's wilderness. University of Pittsburgh Press.

Citazione stile Chigago Style (17a edizione)

Smith, Thomas G. Green Republican: John Saylor and the Preservation of America's Wilderness. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2006.

Citatione MLA (9a ed.)

Smith, Thomas G. Green Republican: John Saylor and the Preservation of America's Wilderness. University of Pittsburgh Press, 2006.