00305nam a2200109Ia 450000500170000000800410001708200150005810000170007324500490009026000480013930000080018720260225051015.0260224s9999||||xx |||||||||||||| ||und||  a639.41 KOR  aP. Korringa  0aFarming the cupped oysters of the genus ….  aNew York: Elesevier Scientific Pub.Coc1976  a244