APA (7th ed.) Citation

Heinzel, G. (1844). De Macrozamia preissii. Zenodo.

Chicago Style (17th ed.) Citation

Heinzel, Gustav. De Macrozamia Preissii. Zenodo, 1844.

MLA (9th ed.) Citation

Heinzel, Gustav. De Macrozamia Preissii. Zenodo, 1844.

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