Cita APA (7a ed.)

Sands, P., Tarasofsky, R. G., & Weiss, M. (1994). Principles of international environmental law. University Press.

Cita Chicago Style (17a ed.)

Sands, Philippe, Richard G. Tarasofsky, y Mary Weiss. Principles of International Environmental Law. Manchester [etc.]: University Press, 1994.

Cita MLA (9a ed.)

Sands, Philippe, et al. Principles of International Environmental Law. University Press, 1994.