PERPILLOU, A. (1977). Human geography.-- ed.2. Longman Group.
芝加哥风格引文PERPILLOU, A.V. Human Geography.-- Ed.2. New York: Longman Group, 1977.
MLA引文PERPILLOU, A.V. Human Geography.-- Ed.2. Longman Group, 1977.
警告:这些引文格式不一定是100%准确.
PERPILLOU, A. (1977). Human geography.-- ed.2. Longman Group.
芝加哥风格引文PERPILLOU, A.V. Human Geography.-- Ed.2. New York: Longman Group, 1977.
MLA引文PERPILLOU, A.V. Human Geography.-- Ed.2. Longman Group, 1977.