Cita APA (7th ed.)
Bachem & Gruber, L. F. Meisterphotos der photokina: Masterphotos at the photokina. Chefs-d'oeuvre de la photokina.
Cita Chicago (17th ed.)
Bachem i Leo Fritz Gruber. Meisterphotos Der Photokina: Masterphotos at the Photokina. Chefs-d'oeuvre De La Photokina.
Cita MLA (9th ed.)
Bachem i Leo Fritz Gruber. Meisterphotos Der Photokina: Masterphotos at the Photokina. Chefs-d'oeuvre De La Photokina.
Atenció: Aquestes cites poden no estar 100% correctes.