Herbert, L. M. (2003). Matthew Ritchie: Proposition player. Hatje Cantz.
Cita Chicago (17th ed.)Herbert, Lynn M. Matthew Ritchie: Proposition Player. Ostfildern-Ruit: Hatje Cantz, 2003.
Cita MLA (8th ed.)Herbert, Lynn M. Matthew Ritchie: Proposition Player. Hatje Cantz, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.