APA (7th ed.) Citation

Neuhold, H., Lang, W., & Zemanek, K. (1991). Environmental protection and international law. Graham & Trotman.

Chicago Style (17th ed.) Citation

Neuhold, Hanspeter, Winfried Lang, and Karl Zemanek. Environmental Protection and International Law. London ; Boston: Graham & Trotman, 1991.

MLA (9th ed.) Citation

Neuhold, Hanspeter, et al. Environmental Protection and International Law. Graham & Trotman, 1991.