The 9th grade : 150 years of free climbing /
Ninth grade
David Chambre ; foreward by Jean-Baptiste Tribout ; translated from French by Aubrey Lawrence and revised by Geoff Birtles and Ian Smith.
- First edition.
- 297, [7] pages : illustrations (chiefly color) ; 28 cm
Translation of: Le 9e degré : 150 ans d'histoire de l'escalade libre.
Includes bibliographical references (page [301]).
A review of the history of the sport of free climbing with biographies of its pioneers.