Boehm, R. G. (1998). Geography: The World and its people : Activity workbook. New York: Glencoe/McGraw-Hill.
استشهاد بنمط شيكاغوBoehm, Ricchard G. Geography: The World and Its People : Activity Workbook. New York: Glencoe/McGraw-Hill, 1998.
MLA استشهادBoehm, Ricchard G. Geography: The World and Its People : Activity Workbook. New York: Glencoe/McGraw-Hill, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.