Cita APA (7th ed.)

Crohn, E., Walter, E., & Schneevoigt, R. ;. K. N. (1979). Hydrokultur.

Cita Chicago (17th ed.)

Crohn, Erwin, Elvira Walter, i Rainer ; Klaus Nowakowski Schneevoigt. Hydrokultur. Berlin, 1979.

Cita MLA (8th ed.)

Crohn, Erwin, et al. Hydrokultur. 1979.