APA (7th ed.) Citation

Haken, J. C. L. Amaranthen: Xeranthemum annuum. Keil.

Chicago Style (17th ed.) Citation

Haken, Johann Christian Ludwig. Amaranthen: Xeranthemum Annuum. Magdeburg: Keil.

MLA (9th ed.) Citation

Haken, Johann Christian Ludwig. Amaranthen: Xeranthemum Annuum. Keil.

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