APA引文

Jakobsson, H. (2001). Essays on concentration, border effects and R&D cooperation.

Chicago Style (17th ed.) Citation

Jakobsson, Helen. Essays on Concentration, Border Effects and R&D Cooperation. 2001.

MLA引文

Jakobsson, Helen. Essays on Concentration, Border Effects and R&D Cooperation. 2001.

警告：这些引文格式不一定是100％准确.