MLA

Heine, Heinrich, 1797-1856. Nachträge zu den Reisebildern. 1831.. https://collections.library.yale.edu/catalog/33351689.

APA, 6th edition

Heine, Heinrich, 1797-1856. (1831.)[Nachträge zu den Reisebildern]. https://collections.library.yale.edu/catalog/33351689.