Mitchell, G. E. (1994). International tour director (Second ed.). Sullivan's Islan: G.E.Mitchell Institute of Travel Career Development.
استشهاد بنمط شيكاغوMitchell, G. E. International Tour Director. Second ed. Sullivan's Islan: G.E.Mitchell Institute of Travel Career Development, 1994.
MLA استشهادMitchell, G. E. International Tour Director. Second ed. Sullivan's Islan: G.E.Mitchell Institute of Travel Career Development, 1994.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.