Robertson, C., Rich, E. E., & Flemming, R. H. (1939). Colin Robertson's Correspondence book, September 1817 to September 1822. The Champlain society.
Cita Chicago Style (17a ed.)Robertson, Colin, E. E. Rich, y R. Harvey Flemming. Colin Robertson's Correspondence Book, September 1817 to September 1822. Toronto: The Champlain society, 1939.
Cita MLA (8a ed.)Robertson, Colin, et al. Colin Robertson's Correspondence Book, September 1817 to September 1822. The Champlain society, 1939.
Precaución: Estas citas no son 100% exactas.