Norlin, G., & Ellsworth, R. E. (1985). A voice from Colorado's past for the present: Selected writings of George Norlin. Colorado Associated University Press.
Citazione stile Chigago Style (17a edizione)Norlin, George, e Ralph E. Ellsworth. A Voice from Colorado's Past for the Present: Selected Writings of George Norlin. Boulder, Colo.: Colorado Associated University Press, 1985.
Citatione MLA (8a ed.)Norlin, George, e Ralph E. Ellsworth. A Voice from Colorado's Past for the Present: Selected Writings of George Norlin. Colorado Associated University Press, 1985.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.