Palmer, J., & Spalding, H. H. (1966). Journal of travels over the Rocky Mountains. University Microfilms.
Citazione stile Chigago Style (17a edizione)Palmer, Joel, e Henry Harmon Spalding. Journal of Travels over the Rocky Mountains. Ann Arbor [Mich.]: University Microfilms, 1966.
Citatione MLA (9a ed.)Palmer, Joel, e Henry Harmon Spalding. Journal of Travels over the Rocky Mountains. University Microfilms, 1966.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.