|Ecotourism (Ekoturystyka), Dominika Zaręba, Scientific Publishing House PWN, 3rd edition, Warsaw 2010. see (only in Polish)|
|Nature Tourism. Managing for the Environment, ed. Tensie Whelan, Island Press, Washington D.C., 1991.
A kind of bible for everybody involved in ecotourism and sustainable tourism.
|Code Green. Experiences for a Lifetime, Lonely Planet, 2006.|
|Ecotourism. Facing global challenges. III Ecotourist Conference, Warsaw 2015. see pdf|
|5th European Ecotourism Conference, Tbilisi, Georgia, Conferemce publication, Georgian Ecotourism Association, 2018. see pdf|