BiblioVault may have an electronic file which would meet your requirements for this title:
Marine Conservation Biology: The Science of Maintaining the Sea's Biodiversity
Elliott A. Norse, Larry B. Crowder, Michael E. Marine Conservation Biology Institute and Michael E. Soulé
Paper: 978-1-55963-662-9
Cloth: 978-1-55963-661-2
Electronic: 978-1-59726-771-7