APA aipamena

Petitpierre, A. (1999). Environmental law in Switzerland. Kluwer Law International ; Stämpfli.

Chicago Style aipamena

Petitpierre, Anne. Environmental Law in Switzerland. The Hague ; Boston : Bern: Kluwer Law International ; Stämpfli, 1999.

MLA aipamena

Petitpierre, Anne. Environmental Law in Switzerland. Kluwer Law International ; Stämpfli, 1999.