English, P. W. (1997). Geography: People and places in a changing world. Lincolnwood: National Textbook Company.
استشهاد بنمط شيكاغوEnglish, Paul Ward. Geography: People and Places in a Changing World. Lincolnwood: National Textbook Company, 1997.
MLA استشهادEnglish, Paul Ward. Geography: People and Places in a Changing World. Lincolnwood: National Textbook Company, 1997.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.