Butler,Richard W, & Boyd,Stephen W. (2000). Tourism and national parks: Issues and implications. John Wiley.
Chicago Edition CitationButler,Richard W, and Boyd,Stephen W. Tourism and National Parks: Issues and Implications. Chichester: John Wiley, 2000.
MLA Edition CitationButler,Richard W, and Boyd,Stephen W. Tourism and National Parks: Issues and Implications. John Wiley, 2000.
Warning: These citations may not always be 100% accurate.