অনুরূপ উপাদানগুলি: Ecotourism & certification :
- The textile and clothing industry of Bangladesh in a changing world economy /
- Megamedia shakeout : the inside story of the leaders and the losers in the exploding communications industry /
- An introduction to geographical information systems /
- Concepts and techniques of geographic information systems /
- Geographic information systems and environmental modeling /
- At the ends of the earth : a history of the polar regions /