Blackshaw, Alan, 1933-. Mountaineering : from hill walking to Alpine climbing / By alan Blackshaw ; foreword by Sir John Hunt. - Harmondsworth : Penguin, 1970. - 556 p. : ill., maps, diagrs. ; 18 cm. Bibliography : p. 516-523. ISBN: 0140461035 Subjects--Topical Terms: Mountaineering.