Harris, Mike Communications at sea / Mike Harris - Dobbs Ferry, NY : Sheridan House, 2003 2003 - xii, 172p. : ill. 24cm Includes bibliographical references and index 172 ISBN: 9781574091618 LC Class. No.: VM325 .H37 2003 Dewey Class. No.: VM325 .H37 2003 National Library of Medicine Call No.: VM325 .H37 2003