Cita APA (7a ed.)

Thornton,Justine, & Beckwith,Silas. (2004). Environmental law. Thomson ..

Cita Chicago Style (17a ed.)

Thornton,Justine, y Beckwith,Silas. Environmental Law. London: Thomson ., 2004.

Cita MLA (9a ed.)

Thornton,Justine, y Beckwith,Silas. Environmental Law. Thomson ., 2004.