Leopold, M. Problems of fish culture economics with special reference to carp culture in Eastern Europe / by Marian Leopold. - Rome : Food and Agriculture Organization of the United Nations, 1981. - EIFAC technical paper ; no. 40 . EIFAC/T40. Bibliography: 88-99. ISBN: 9251011524 Subjects--Topical Terms: Fish-culture -- Economic aspects -- Europe, Eastern.--Fish-culture -- Economic aspects -- Europe, Eastern.--Fish-culture -- Economic aspects -- Europe, Eastern.Carp fisheries.