APA
Wolfrum R. [., Stoll P. [. & Seibert-Fohr A. [. (2007). WTO-Technical Barriers and SPS measures. Ed. by Rudiger Wolf. Leiden: Martinus Nijhoff.
Chicago
Wolfrum Rudiger [ed], Stoll Pieter-Tobias [ed] and Seibert-Fohr Anja [ed]. 2007. WTO-Technical Barriers and SPS measures. Ed. by Rudiger Wolf. Leiden: Martinus Nijhoff.
Harvard
Wolfrum R. [., Stoll P. [. and Seibert-Fohr A. [. (2007). WTO-Technical Barriers and SPS measures. Ed. by Rudiger Wolf. Leiden: Martinus Nijhoff.
MLA
Wolfrum Rudiger [ed], Stoll Pieter-Tobias [ed] and Seibert-Fohr Anja [ed]. WTO-Technical Barriers and SPS measures. Ed. by Rudiger Wolf. Leiden: Martinus Nijhoff. 2007.