Dyfyniad APA
Helmcken, J. S., & Smith, D. B. (1975). The reminiscences of Doctor John Sebastian Helmcken. University of British Columbia Press, in co-operation with the Provincial Archives of British Columbia.
Dyfyniad Arddull Chicago
Helmcken, John Sebastian, and Dorothy Blakey Smith. The Reminiscences of Doctor John Sebastian Helmcken. [Vancouver]: University of British Columbia Press, in co-operation with the Provincial Archives of British Columbia, 1975.
Dyfyniad MLA
Helmcken, John Sebastian, and Dorothy Blakey Smith. The Reminiscences of Doctor John Sebastian Helmcken. University of British Columbia Press, in co-operation with the Provincial Archives of British Columbia, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.