00440nam a2200133Ia 4500 180412s9999||||xx |||||||||||||| ||und|| 120078228 Ahmadu Bello University Library - Zaria QD 505 Eley, D.D. Advances in catalysis and related subjects edited by d.D. Eley, Herman Pines and Paul B. Weisz New York Academic Press 1972 Vol. 22. Pines, Herman;Weisz, Paul B. 7500 7500