https://www.chapters.indigo.ca/en-ca/home/search/?keywords=Robert%20Proudfoot#internal=1
Pagemasterpublishing.ca/by/Robert-Proudfoot
https://www.amazon.ca/s?k=Robert+Proudfoot&i=stripbooks&ref=nb_sb_noss
​https://www.barnesandnoble.com/s/Robert%20Proudfoot

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