Whittle، Patrick؛ وآخرون (12 ديسمبر 2014). "Re-creation tourism: de-extinction and its implications for nature-based recreation". Current Issues in Tourism. ج. 18 ع. 10: 908–912. DOI:10.1080/13683500.2015.1031727. S2CID:154878733.
Whittle، Patrick؛ وآخرون (12 ديسمبر 2014). "Re-creation tourism: de-extinction and its implications for nature-based recreation". Current Issues in Tourism. ج. 18 ع. 10: 908–912. DOI:10.1080/13683500.2015.1031727. S2CID:154878733.