Cita APA (7a ed.)

Landheer, B., & Essen, J. L. F. v. (1953). Fundamentals of public international law. A. W. Sitjhoff.

Cita Chicago Style (17a ed.)

Landheer, Bartholomeus, y Jan Louis Frederick van Essen. Fundamentals of Public International Law. Leyden: A. W. Sitjhoff, 1953.

Cita MLA (9a ed.)

Landheer, Bartholomeus, y Jan Louis Frederick van Essen. Fundamentals of Public International Law. A. W. Sitjhoff, 1953.