Flamini, R. (1997). Passport Germany: Your pocket guide to German business, customs & etiquette. World Trade Press.
Chicago-referens (17:e uppl.)Flamini, Roland. Passport Germany: Your Pocket Guide to German Business, Customs & Etiquette. San Raphael, Calif., USA: World Trade Press, 1997.
MLA-referens (9:e uppl.)Flamini, Roland. Passport Germany: Your Pocket Guide to German Business, Customs & Etiquette. World Trade Press, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.