Citazione Stile APA (7a Edizione)
Francaviglia, R. V. (1991). Hard places: Reading the landscape of America's historic mining districts. University of Iowa Press.
Citazione stile Chigago Style (17a edizione)
Francaviglia, Richard V. Hard Places: Reading the Landscape of America's Historic Mining Districts. Iowa City, Iowa: University of Iowa Press, 1991.
Citatione MLA (9a ed.)
Francaviglia, Richard V. Hard Places: Reading the Landscape of America's Historic Mining Districts. University of Iowa Press, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.