APA (7th ed.) Citation

Delbrück, J., Hofmann, R., & Sears, J. M. (1999). German yearbook of international law. Duncker & Humblot.

Chicago Style (17th ed.) Citation

Delbrück, Jost, Rainer Hofmann, and Jill M. Sears. German Yearbook of International Law. Berlin, Germany: Duncker & Humblot, 1999.

MLA (8th ed.) Citation

Delbrück, Jost, et al. German Yearbook of International Law. Duncker & Humblot, 1999.