Liège

MLA

Cosyn, Maurice, and Adolphe Hardy. Liège. Bruxelles: Guides Cosyn, .d.

APA

Cosyn, M., & Hardy, A. (.d). Liège. Bruxelles: Guides Cosyn.

Chicago

Cosyn, Maurice, and Adolphe Hardy. Liège. Bruxelles: Guides Cosyn, .d.