APA (7th ed.) Citation

Sommer, U. (1994). Planktologie. Springer-Verlag.

Chicago Style (17th ed.) Citation

Sommer, Ulrich. Planktologie. Berlin: Springer-Verlag, 1994.

MLA (9th ed.) Citation

Sommer, Ulrich. Planktologie. Springer-Verlag, 1994.

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