00251nam a2200109Ia 450000500170000008000180001710000160003524500380005126000220008930000110011158300190012220260716043056.0 a07.10.03 C661 aCoche, A.G. aWater for freshwater fish culture bFAOaRomeITc1981 a111 p. c3/7/00kM2LMGR