APA (7th ed.) Citation

Hopf, M., & Willerding, U. (1988). Pflanzenreste.

Chicago Style (17th ed.) Citation

Hopf, Maria, and Ulrich Willerding. Pflanzenreste. 1988.

MLA (8th ed.) Citation

Hopf, Maria, and Ulrich Willerding. Pflanzenreste. 1988.

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