Altan, M., F. Bosker, E. Cavagnaro, and K. Eringa. “Services and Sustainability. A Travellers’ Guide.: Publisher: Stenden University (ex CHN University), The Netherlands. August 2007. Paperback. 133 Pages. ISBN 978-90-809-7945-1 Reviewed by Todor Dyankov, Ph. D., International University College, Bulgaria”. European Journal of Tourism Research, vol. 1, no. 2, Oct. 2008, pp. 158-60, doi:10.54055/ejtr.v1i2.22.