APA (7th ed.) Citation

Krings, M., & Kerp, H. (2006). Neuropteris attenuata, a narrow-stemmed, leaning or lianescent seed fern from the Upper Pennsylvanian of Lower Saxony, Germany. Elsevier.

Chicago Style (17th ed.) Citation

Krings, Michael, and Hans Kerp. Neuropteris Attenuata, a Narrow-stemmed, Leaning or Lianescent Seed Fern from the Upper Pennsylvanian of Lower Saxony, Germany. Jena: Elsevier, 2006.

MLA (9th ed.) Citation

Krings, Michael, and Hans Kerp. Neuropteris Attenuata, a Narrow-stemmed, Leaning or Lianescent Seed Fern from the Upper Pennsylvanian of Lower Saxony, Germany. Elsevier, 2006.