Cita APA (7a ed.)

Beattie, J. H., & Buss, H. M. (2003). Undelivered letters to Hudson's Bay Company men on the Northwest Coast of America, 1830-57. UBC Press.

Cita Chicago Style (17a ed.)

Beattie, Judith Hudson, y Helen M. Buss. Undelivered Letters to Hudson's Bay Company Men on the Northwest Coast of America, 1830-57. Vancouver: UBC Press, 2003.

Cita MLA (8a ed.)

Beattie, Judith Hudson, y Helen M. Buss. Undelivered Letters to Hudson's Bay Company Men on the Northwest Coast of America, 1830-57. UBC Press, 2003.