APA-referens (7:e uppl.)
Langohr, H. M., & Langohr, P. T. (2008). The rating agencies and their credit ratings: What they are, how they work and why they are relevant. John Wiley.
Chicago-referens (17:e uppl.)
Langohr, Herwig M., och Patricia T. Langohr. The Rating Agencies and Their Credit Ratings: What They Are, How They Work and Why They Are Relevant. Chichester, West Sussex, England ; Hoboken, NJ: John Wiley, 2008.
MLA-referens (9:e uppl.)
Langohr, Herwig M., och Patricia T. Langohr. The Rating Agencies and Their Credit Ratings: What They Are, How They Work and Why They Are Relevant. John Wiley, 2008.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.