APA
Guzman Andrew T, Pauwelyn Joost H B, . (2009). International trade law. Austin: Wolters Kluwer.
Chicago
Guzman Andrew T, Pauwelyn Joost H B, . 2009. International trade law. Austin: Wolters Kluwer.
Harvard
Guzman Andrew T, Pauwelyn Joost H B, . (2009). International trade law. Austin: Wolters Kluwer.
MLA
Guzman Andrew T, Pauwelyn Joost H B, . International trade law. Austin: Wolters Kluwer. 2009.