APA (7th ed.) Citation

Psenner, R., & Lackner, R. (2006). Die Alpen im Jahr 2020. innsbruck university press.

Chicago Style (17th ed.) Citation

Psenner, Roland, and Reinhard Lackner. Die Alpen Im Jahr 2020. innsbruck university press, 2006.

MLA (9th ed.) Citation

Psenner, Roland, and Reinhard Lackner. Die Alpen Im Jahr 2020. innsbruck university press, 2006.

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