Cita APA (7th ed.)

Ritschard, C. (1989). Pierre André Ferrand. Das Kunst-Bulletin.

Cita Chicago (17th ed.)

Ritschard, Claude. "Pierre André Ferrand." Das Kunst-Bulletin 1989.

Cita MLA (8th ed.)

Ritschard, Claude. "Pierre André Ferrand." Das Kunst-Bulletin, 1989.

Atenció: Aquestes cites poden no estar 100% correctes.