APA (7e ed.) Bronvermelding

Friedensburg, F., & Gray, L. H. (1911). The practical results of workingmen's insurance in Germany. The Workmen's compensation service and information bureau].

Chicago (17e ed.) Bronvermelding

Friedensburg, F., en Louis H. Gray. The Practical Results of Workingmen's Insurance in Germany. [New York city: The Workmen's compensation service and information bureau], 1911.

MLA (8e ed.) Bronvermelding

Friedensburg, F., en Louis H. Gray. The Practical Results of Workingmen's Insurance in Germany. The Workmen's compensation service and information bureau], 1911.