APA (7th ed.) Citation

Gaupseth, S., Federhofer, M., & Aspaas, P. P. (2013). Foreword. Wehrhahn Verlag.

Chicago Style (17th ed.) Citation

Gaupseth, Silje, Marie-Theres Federhofer, and Per Pippin Aspaas. Foreword. Wehrhahn Verlag, 2013.

MLA (9th ed.) Citation

Gaupseth, Silje, et al. Foreword. Wehrhahn Verlag, 2013.