APA (7th ed.) Citation

Hammer Jensen, I. (1913). Ptolemaios und Heron.

Chicago Style (17th ed.) Citation

Hammer Jensen, Ingeborg. Ptolemaios Und Heron. 1913.

MLA (9th ed.) Citation

Hammer Jensen, Ingeborg. Ptolemaios Und Heron. 1913.

Warning: These citations may not always be 100% accurate.