Boehm, R. G. (1998). Geography: The World and its people : Activity workbook. New York: Glencoe/McGraw-Hill.
シカゴスタイル引用形Boehm, Ricchard G. Geography: The World and Its People : Activity Workbook. New York: Glencoe/McGraw-Hill, 1998.
MLA引用形式Boehm, Ricchard G. Geography: The World and Its People : Activity Workbook. New York: Glencoe/McGraw-Hill, 1998.
警告: この引用は必ずしも正確ではありません.