APA引文

Kekulé, R. (1896). Ernst Curtius. W. Spemann.

Chicago Style (17th ed.) Citation

Kekulé, Reinhard. Ernst Curtius. Berlin: W. Spemann, 1896.

MLA引文

Kekulé, Reinhard. Ernst Curtius. W. Spemann, 1896.

警告：這些引文格式不一定是100％准確.