German socialists and Belgium.

MLA

Royer, Emile, and Emile Vandervelde. German Socialists and Belgium. London: Allen & Unwin, 1915.

APA

Royer, E., & Vandervelde, E. (1915). German socialists and Belgium. London: Allen & Unwin.

Chicago

Royer, Emile, and Emile Vandervelde. German Socialists and Belgium. London: Allen & Unwin, 1915.