Hegemann, P. Two hundredth anniversary of Humboldt ? University, time for new cooperations with old friends.
芝加哥风格引文Hegemann, Peter. Two Hundredth Anniversary of Humboldt ? University, Time for New Cooperations with Old Friends.
MLA引文Hegemann, Peter. Two Hundredth Anniversary of Humboldt ? University, Time for New Cooperations with Old Friends.
警告：这些引文格式不一定是100％准确.