Frommer's 500 places where you can make a difference /Author: Mersmann, Andrew.
Publisher: Chichester : John Wiley [distributor],
Date: 2009. This title can be found in 3 Iowa libraries.
Volunteer : a traveller's guide to making a difference around the world.Publisher: London : London : Lonely Planet,
Date: 2007. This title can be found in 3 Iowa libraries.
Volunteer tourism : experiences that make a difference /Author: Wearing, Stephen.
Publisher: New York : New York : CABI,
Date: c2001. This title can be found in 2 Iowa libraries.
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