00497nam 2200181z- 450 99105900546033213-030-48652-4(CKB)5680000000077006(EXLCZ)99568000000007700620220906c2022uuuu -u- -engHandbook of E-TourismSpringer Nature (Textbooks & Major Reference Works)3-030-48651-6 BOOK9910590054603321Handbook of e-Tourism2509726UNINA