Cita APA (7a ed.)

Residential Seminar on Environmental Law & Thomas, P. (1991). Environmental liability: 7th Residential Seminar on Environmental law, 9-13 June 1990, Montreux Switzerland. Graham & Trotman.

Cita Chicago Style (17a ed.)

Residential Seminar on Environmental Law y Patricia Thomas. Environmental Liability: 7th Residential Seminar on Environmental Law, 9-13 June 1990, Montreux Switzerland. London [etc.]: Graham & Trotman, 1991.

Cita MLA (9a ed.)

Residential Seminar on Environmental Law y Patricia Thomas. Environmental Liability: 7th Residential Seminar on Environmental Law, 9-13 June 1990, Montreux Switzerland. Graham & Trotman, 1991.