APA (7th ed.) Citation

(1991). Wallis Exkursion 1991: 20. - 25. September. Geograph. Inst.

Chicago Style (17th ed.) Citation

Wallis Exkursion 1991: 20. - 25. September. Regensburg: Geograph. Inst, 1991.

MLA (9th ed.) Citation

Wallis Exkursion 1991: 20. - 25. September. Geograph. Inst, 1991.

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