APA (7th ed.) Citation

Hecke, R. (2011). Irene (1st [Edition Patrick Frey] ed.). Edition Patrick Frey.

Chicago Style (17th ed.) Citation

Hecke, Roswitha. Irene. 1st [Edition Patrick Frey] ed. Zürich: Edition Patrick Frey, 2011.

MLA (9th ed.) Citation

Hecke, Roswitha. Irene. 1st [Edition Patrick Frey] ed. Edition Patrick Frey, 2011.

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