Artificial reproduction and pond rearing of the African catfish Clarias gariepinus in sub-Saharan Africa: A handbook

由 Graaf, Gertjan de
出版 1996

Floods fish and fishermen : Eight Years experiences with flood plain fisheries, fish migration, fisheries modelling and fish bio diveristy in the comparmentalization pilot project, Bangladesh

由 Graaf , Gertjan de
出版 2001