APA (7th ed.) Citation

Bouman, P. J., Beijer, G. 1., & Oudegeest, J. (1950). The refugee problem in Western Germany. Nijhoff.

Chicago Style (17th ed.) Citation

Bouman, P. J., Gunther 1950 Beijer, and Jan Oudegeest. The Refugee Problem in Western Germany. The Hague: Nijhoff, 1950.

MLA (8th ed.) Citation

Bouman, P. J., et al. The Refugee Problem in Western Germany. Nijhoff, 1950.