Helm, Michael M. Hatchery culture of bivalves : a practical manual / prepared by Michael M. Helm & Neil Bourne ; comp. & ed. by Alessandro Lovatelli. - Rome : FAO of the United Nations, 2004. - xxi, 177 p. : col. ill. ; 30 cm. - FAO fisheries technical paper ; 471 . Includes bibliographies. ISBN: 9251052247 Subjects--Topical Terms: Bivalvia.Mollusks.Hatchery fishes.