APA引文

Italiaander, R. Some unknown letters of the German Africa explorer Heinrich Barth.

Chicago Style (17th ed.) Citation

Italiaander, Rolf. Some Unknown Letters of the German Africa Explorer Heinrich Barth.

MLA引文

Italiaander, Rolf. Some Unknown Letters of the German Africa Explorer Heinrich Barth.

警告：这些引文格式不一定是100％准确.