The current "primary" edition is the English translation. The author is French and his other works (including those translated) are showing the French title.
The primary edition on GR is the edition that has been shelved by the most users (note: a GR author can choose to change the primary edition, librarians can't do this).
Most current print release: https://www.goodreads.com/book/show/5...
(2017)
First printing ever: https://www.goodreads.com/book/show/1... (this is actually a softcover, 1981).
Publisher's Site: https://www.quebec-amerique.com/colle...
1985 Version:
https://www.quebec-amerique.com/colle...
Thanks!