ΕπικεφαλίδαVarlo, Charles χρησιμοποιείται σε: Integrated Authority File (GND), Germany
Varlo, Charles χρησιμοποιείται σε: British Library: English Short Title Catalogue - AACR2 Heading, London (United Kingdom); British Library: English Short Title Catalogue - GK Heading, London (United Kingdom)