00357nam a2200133Ia 4500001000500000005001700005008004100022020001500063082001700078100002000095245006400115260001600179650002800195424520261006003751.0120911s9999    xx            000 0 und d  a0071133062  a338.4791 FOS  aFoster,Dennis L  aThe business of travel:agency operations and administration  aMcgraw-Hill  aTravel agents-marketing