Cita APA (7a ed.)

Hoog, G., & Steinmetz, A. (1993). International conventions on protection of humanity and environment. Walter de Gruyter.

Cita Chicago Style (17a ed.)

Hoog, Günter, y Angela Steinmetz. International Conventions on Protection of Humanity and Environment. Berlin [etc.]: Walter de Gruyter, 1993.

Cita MLA (9a ed.)

Hoog, Günter, y Angela Steinmetz. International Conventions on Protection of Humanity and Environment. Walter de Gruyter, 1993.