APA (7th ed.) Citation

Dietrich, H. (1990). Orchideenimpressionen.

Chicago Style (17th ed.) Citation

Dietrich, Helga. Orchideenimpressionen. Jena, 1990.

MLA (9th ed.) Citation

Dietrich, Helga. Orchideenimpressionen. 1990.

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