APA (7th ed.) Citation

Hitz, C., Mann, K., & Wollenweber, E. (1982). New flavonoids from the farina of Pityrogramma species ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Hitz, Christiane, Karin Mann, and Eckhard Wollenweber. New Flavonoids from the Farina of Pityrogramma Species. [Sonderdr.]. 1982.

MLA (9th ed.) Citation

Hitz, Christiane, et al. New Flavonoids from the Farina of Pityrogramma Species. [Sonderdr.]. 1982.