Cruz, Reil G. <br/><br/>ECOTOURISM  -- 1st Ed.  -- Quezon City  Rex Book Srore  2017 <br/>172 p.  252 cm. <br/><br/> Includes index. <br/><br/><label>ISBN: </label>9789712386503 <br/><br/><label>Subjects--Topical Terms: </label><br/>Tourism Environmental Aspect<br/><br/><label>Dewey Class. No.: </label>Fil 338.4791 C9573a 2017