Ecology of freshwater fish production
Gerking, Shelby D, Ed.
Ecology of freshwater fish production - - Blackwell Scientific Publications, Oxford 1978 - 520 - .
Fish culture in freshwater
639.31 GER-E
Ecology of freshwater fish production - - Blackwell Scientific Publications, Oxford 1978 - 520 - .
Fish culture in freshwater
639.31 GER-E