00329nam a2200133Ia 4500020000900000082001000009100003100019245008400050250000600134260003300140300000800173500000800181650000600189 aNULL a581.1 aEdwards, G / Walker, D. A. 0aC3, C4 : Mechanisms and Cellular and Environmental Regulation of Photosynthesis a- aOxfordbBlackwell Publishing a542 a698 a-