Cita APA

Nordstrom,Hakan, & Vaughan,Scatt. (1999). Trade and environment. World Trade Organization.

Chicago Edition Citation

Nordstrom,Hakan, i Vaughan,Scatt. Trade and Environment. Geneva: World Trade Organization, 1999.

Cita MLA

Nordstrom,Hakan, i Vaughan,Scatt. Trade and Environment. World Trade Organization, 1999.

Atenció: Aquestes cites poden no estar 100% correctes.