\a Management Techniques For Elasmobranch Fisheries \h [Text] \c Edited by John A. Musick and Ramon Bonfil - \a Rome. \b Food and Agriculture Organzation of The United Nations \c 2005 - \a 251p.: \b ill. - \a FAO Fisheries Technical Paper 474 . \a item in document \a includes bibliographical references ISBN: \a 9789251054031 LC Class. No.: \a SH 351.E43 Man / \b 503918