year of pub­li­ca­ti­onISBNauthor(s)title
1996978-1-901002-00-3International Fund for Animal Welfare · Tethys Research Institute · Europe ConservationReport of the Workshop on the Scientific Aspects of Managing Whale Watching Montecastello Di Vibio, Italy 30th March-4th April 1995
1999978-1-901002-06-5International Fund for Animal WelfareOut of control in the countryside: The 1998-9 hunt season
2001978-1-901002-09-6Erich HoytWhale Watching 2001: Worldwide Tourism Numbers, Expenditures and Expanding Socio Economic Benefits