APA (7th ed.) Citation

Reitner, J., & Keupp, H. (1991). Fossil and Recent Sponges. Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-75656-6

Chicago Style (17th ed.) Citation

Reitner, Joachim, and Helmut Keupp. Fossil and Recent Sponges. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. https://doi.org/10.1007/978-3-642-75656-6.

MLA (9th ed.) Citation

Reitner, Joachim, and Helmut Keupp. Fossil and Recent Sponges. Springer Berlin Heidelberg, 1991. https://doi.org/10.1007/978-3-642-75656-6.