MLA

Van Calster, Lodewijk Alfons. In Uw Dienst, Heer. Gent: VKSJ, 1939.

APA

Van Calster, L. Alfons. (1939). In uw dienst, Heer. Gent: VKSJ.

Chicago

Van Calster, Lodewijk Alfons, In Uw Dienst, Heer. Gent: VKSJ, 1939.