Roberts, M. (1927). On the trail: Through British Columbia after forty years (1a. ed.). Eveleigh Nash & Grayson, Ltd.
Citace podle Chicago (17th ed.)Roberts, Morley. On the Trail: Through British Columbia After Forty Years. 1a. ed. Londres: Eveleigh Nash & Grayson, Ltd, 1927.
Citace podle MLA (9th ed.)Roberts, Morley. On the Trail: Through British Columbia After Forty Years. 1a. ed. Eveleigh Nash & Grayson, Ltd, 1927.
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