Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.

APA Citation Edition Citation

Tvengsberg, P. M. (1995). Rye and swidden cultivation tillage without tools.

Chicago Citation Edition Citation

Tvengsberg, Per Martin. Rye and Swidden Cultivation Tillage Without Tools. 1995.

MLA Citation Edition Citation

Tvengsberg, Per Martin. Rye and Swidden Cultivation Tillage Without Tools. 1995.