Developing sustainable tourism for world heritage sites

[1] [Anonymous], 1987, OUR COMMON FUTURE RE

[2] Ashworth G.J., 1990, TOURIST HIST CITY

[3] BUTLER R, 1991, TOURISM ENV SUSTAINA, P201

[4] COOK RJ, 1976, CHARTER CULTURAL TOU

[5] COOK RJ, 1990, WORLD HERITAGE CONVE

[6] *INT COMM PROT WOR, OP GUID IMPL WORLD H

[7] MATHIESON A, 1982, TOURISM EC PHYSICAL

[8] UNESCO, 2011, CONV CONC PROT WORLD, P11

[1] [Anonymous], 1987, OUR COMMON FUTURE RE

[2] Ashworth G.J., 1990, TOURIST HIST CITY

[3] BUTLER R, 1991, TOURISM ENV SUSTAINA, P201

[4] COOK RJ, 1976, CHARTER CULTURAL TOU

[5] COOK RJ, 1990, WORLD HERITAGE CONVE

[6] *INT COMM PROT WOR, OP GUID IMPL WORLD H

[7] MATHIESON A, 1982, TOURISM EC PHYSICAL

[8] UNESCO, 2011, CONV CONC PROT WORLD, P11