%0 Journal Article %A Sancho, Neville %T Topics in optimization, edited by G. Leitmann. Academic Press, 1967. Vol. 31 of the series Maths in Science and Engineering. $18.00. %J Canadian mathematical bulletin %D 1968 %P 334-335 %V 11 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0008439500029271/ %R 10.1017/S0008439500029271 %F 10_1017_S0008439500029271