00298nam a2200109Ia 450000500170000000800410001708200120005810000200007024500470009026000430013730000080018020260224041033.0260224s9999||||xx |||||||||||||| ||und||  a630 CAM  aCampbell, K.O.  4aThe scientific basis of modern agriculture  aSydney : Sydney University Pressc1995  a479